1. org.xml.sax.SAXParseException: 前言中不允许有内容。

代码：

  1. @RestController
  2. @RequestMapping("/v1/demo")
  3. public class DempController implements CommandLineRunner {
  5.     private final static Logger LOG = LoggerFactory.getLogger(DempController.class);
  7.     @Autowired
  8.     private ProcessEngine processEngine;
  10.     @GetMapping("/get")
  11.     public String get() {
  12.         return "get " + UUID.randomUUID();
  13.     }
  14.     @GetMapping("/get2")
  15.     public String get2() {
  16.         return "get2 " + UUID.randomUUID();
  17.     }
  18.     @GetMapping("/get3")
  19.     public String get3() {
  20.         return "get3 " + UUID.randomUUID();
  21.     }
  24.     @Override
  25.     public void run(String... args) throws Exception {
  26.         // 部署流程
  27.         DynamicBpmnService dynamicBpmnService = processEngine.getDynamicBpmnService();
  28.         RepositoryService repositoryService = processEngine.getRepositoryService();
  29.         Deployment first = repositoryService.createDeployment()
  30.                 .addString("classpath*:xiaohui-test.bpmn", "first").deploy();
  31.         LOG.info("deplogy : {}", first);
  32.     }
  33. }

报错：

  1. 2021-02-03 11:02:23.905 ERROR 1236 --- [           main] o.a.e.impl.interceptor.CommandContext    : Error while closing command context
  3. org.activiti.bpmn.exceptions.XMLException: 前言中不允许有内容。
  4.     at org.activiti.bpmn.converter.BpmnXMLConverter.convertToBpmnModel(BpmnXMLConverter.java:279) ~[activiti-bpmn-converter-7.1.0.M6.jar:na]
  5.     at org.activiti.engine.impl.bpmn.parser.BpmnParse.execute(BpmnParse.java:148) ~[activiti-engine-7.1.0.M6.jar:na]
  6.     at org.activiti.engine.impl.bpmn.deployer.ParsedDeploymentBuilder.createBpmnParseFromResource(ParsedDeploymentBuilder.java:96) ~[activiti-engine-7.1.0.M6.jar:na]
  7.     at org.activiti.engine.impl.bpmn.deployer.ParsedDeploymentBuilder.build(ParsedDeploymentBuilder.java:55) ~[activiti-engine-7.1.0.M6.jar:na]
  8.     at org.activiti.engine.impl.bpmn.deployer.BpmnDeployer.deploy(BpmnDeployer.java:66) ~[activiti-engine-7.1.0.M6.jar:na]
  9.     at org.activiti.engine.impl.persistence.deploy.DeploymentManager.deploy(DeploymentManager.java:58) ~[activiti-engine-7.1.0.M6.jar:na]
  10.     at org.activiti.engine.impl.cmd.DeployCmd.executeDeploy(DeployCmd.java:105) ~[activiti-engine-7.1.0.M6.jar:na]
  11.     at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:47) ~[activiti-engine-7.1.0.M6.jar:na]
  12.     at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:37) ~[activiti-engine-7.1.0.M6.jar:na]
  13.     at org.activiti.engine.impl.interceptor.CommandInvoker$1.run(CommandInvoker.java:37) ~[activiti-engine-7.1.0.M6.jar:na]
  14.     at org.activiti.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:78) ~[activiti-engine-7.1.0.M6.jar:na]
  15.     at org.activiti.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:57) ~[activiti-engine-7.1.0.M6.jar:na]
  16.     at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:42) ~[activiti-engine-7.1.0.M6.jar:na]
  17.     at org.activiti.engine.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:48) ~[activiti-engine-7.1.0.M6.jar:na]
  18.     at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:59) ~[activiti-engine-7.1.0.M6.jar:na]
  19.     at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47) [activiti-spring-7.1.0.M6.jar:na]
  20.     at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) [spring-tx-5.1.13.RELEASE.jar:5.1.13.RELEASE]
  21.     at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45) [activiti-spring-7.1.0.M6.jar:na]
  22.     at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:29) [activiti-engine-7.1.0.M6.jar:na]
  23.     at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:44) [activiti-engine-7.1.0.M6.jar:na]
  24.     at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:39) [activiti-engine-7.1.0.M6.jar:na]
  25.     at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:82) [activiti-engine-7.1.0.M6.jar:na]
  26.     at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.java:233) [activiti-engine-7.1.0.M6.jar:na]
  27.     at my.activiti.demo.com.web.DempController.run(DempController.java:45) [classes/:na]
  28.     at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:781) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  29.     at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:765) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  30.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:319) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  31.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  32.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  33.     at my.activiti.demo.com.DemoMyBatisApp.main(DemoMyBatisApp.java:12) [classes/:na]
  34. Caused by: org.xml.sax.SAXParseException: 前言中不允许有内容。
  35.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:204) ~[na:1.8.0_261]
  36.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.fatalError(ErrorHandlerWrapper.java:178) ~[na:1.8.0_261]
  37.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:400) ~[na:1.8.0_261]
  38.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327) ~[na:1.8.0_261]
  39.     at com.sun.org.apache.xerces.internal.impl.XMLScanner.reportFatalError(XMLScanner.java:1472) ~[na:1.8.0_261]
  40.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl$PrologDriver.next(XMLDocumentScannerImpl.java:1009) ~[na:1.8.0_261]
  41.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605) ~[na:1.8.0_261]
  42.     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:113) ~[na:1.8.0_261]
  43.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:507) ~[na:1.8.0_261]
  44.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:867) ~[na:1.8.0_261]
  45.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:796) ~[na:1.8.0_261]
  46.     at com.sun.org.apache.xerces.internal.jaxp.validation.StreamValidatorHelper.validate(StreamValidatorHelper.java:152) ~[na:1.8.0_261]
  47.     at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.validate(ValidatorImpl.java:116) ~[na:1.8.0_261]
  48.     at javax.xml.validation.Validator.validate(Validator.java:124) ~[na:1.8.0_261]
  49.     at org.activiti.bpmn.converter.BpmnXMLConverter.validateModel(BpmnXMLConverter.java:213) ~[activiti-bpmn-converter-7.1.0.M6.jar:na]
  50.     at org.activiti.bpmn.converter.BpmnXMLConverter.convertToBpmnModel(BpmnXMLConverter.java:268) ~[activiti-bpmn-converter-7.1.0.M6.jar:na]
  51.     ... 29 common frames omitted

处理办法：

  1. 使用java读取XML文件时，总报“前言中不允许有内容”错误 。经检查，XML文件格式、内容没有错误。 
  2. 原因分析：  
  3. 　文件编码问题。 
  4. 　用记事本打开xml文件转化为UTF-8会有一个BOM头，所以java在读取时就会报以上错误。 
  6. 解决方法 ： 
  7. 　　方法一：用notepad++打开，在格式选择“以UTF-8无BOM格式编码”，然后保存。
  9.        方法二：使用EmEditor另存，保存时选择“UTF-8无签名”。 
  11.        方法三：有sublime打开，file -> save with encoding -> utf-8

2. org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: 发现了以元素 ‘process’ 开头的无效内容。应以 ‘{“http://www.omg.org/spec/BPMN/20100524/MODEL":import, “http://www.omg.org/spec/BPMN/20100524/MODEL":extension, “http://www.omg.org/spec/BPMN/20100524/MODEL":rootElement, “http://www.omg.org/spec/BPMN/20100524/DI":BPMNDiagram, “http://www.omg.org/spec/BPMN/20100524/MODEL":relationship}‘ 之一开头。

代码：

  1. @Override
  2. public void run(String... args) throws Exception {
  3.     // 部署流程
  4.     DynamicBpmnService dynamicBpmnService = processEngine.getDynamicBpmnService();
  5.     RepositoryService repositoryService = processEngine.getRepositoryService();
  6.     /* Deployment first = repositoryService.createDeployment()
  7.                 .addString("classpath*:xiaohui-test.bpmn", "first").deploy();
  8.         LOG.info("deplogy : {}", first);*/
  9.     Deployment deploy = repositoryService.createDeployment().addClasspathResource("xiaohui-test.bpmn").deploy();
  10.     LOG.info("deploy : {}", deploy);
  11. }

报错：

  1. 2021-02-03 11:13:22.596 ERROR 15140 --- [           main] o.s.boot.SpringApplication               : Application run failed
  3. java.lang.IllegalStateException: Failed to execute CommandLineRunner
  4.     at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:784) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  5.     at org.springframework.boot.SpringApplication.callRunners(SpringApplication.java:765) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  6.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:319) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  7.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1215) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  8.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1204) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  9.     at my.activiti.demo.com.DemoMyBatisApp.main(DemoMyBatisApp.java:12) [classes/:na]
  10. Caused by: org.activiti.bpmn.exceptions.XMLException: cvc-complex-type.2.4.a: 发现了以元素 'process' 开头的无效内容。应以 '{"http://www.omg.org/spec/BPMN/20100524/MODEL":import, "http://www.omg.org/spec/BPMN/20100524/MODEL":extension, "http://www.omg.org/spec/BPMN/20100524/MODEL":rootElement, "http://www.omg.org/spec/BPMN/20100524/DI":BPMNDiagram, "http://www.omg.org/spec/BPMN/20100524/MODEL":relationship}' 之一开头。
  11.     at org.activiti.bpmn.converter.BpmnXMLConverter.convertToBpmnModel(BpmnXMLConverter.java:279) ~[activiti-bpmn-converter-7.1.0.M6.jar:na]
  12.     at org.activiti.engine.impl.bpmn.parser.BpmnParse.execute(BpmnParse.java:148) ~[activiti-engine-7.1.0.M6.jar:na]
  13.     at org.activiti.engine.impl.bpmn.deployer.ParsedDeploymentBuilder.createBpmnParseFromResource(ParsedDeploymentBuilder.java:96) ~[activiti-engine-7.1.0.M6.jar:na]
  14.     at org.activiti.engine.impl.bpmn.deployer.ParsedDeploymentBuilder.build(ParsedDeploymentBuilder.java:55) ~[activiti-engine-7.1.0.M6.jar:na]
  15.     at org.activiti.engine.impl.bpmn.deployer.BpmnDeployer.deploy(BpmnDeployer.java:66) ~[activiti-engine-7.1.0.M6.jar:na]
  16.     at org.activiti.engine.impl.persistence.deploy.DeploymentManager.deploy(DeploymentManager.java:58) ~[activiti-engine-7.1.0.M6.jar:na]
  17.     at org.activiti.engine.impl.cmd.DeployCmd.executeDeploy(DeployCmd.java:105) ~[activiti-engine-7.1.0.M6.jar:na]
  18.     at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:47) ~[activiti-engine-7.1.0.M6.jar:na]
  19.     at org.activiti.engine.impl.cmd.DeployCmd.execute(DeployCmd.java:37) ~[activiti-engine-7.1.0.M6.jar:na]
  20.     at org.activiti.engine.impl.interceptor.CommandInvoker$1.run(CommandInvoker.java:37) ~[activiti-engine-7.1.0.M6.jar:na]
  21.     at org.activiti.engine.impl.interceptor.CommandInvoker.executeOperation(CommandInvoker.java:78) ~[activiti-engine-7.1.0.M6.jar:na]
  22.     at org.activiti.engine.impl.interceptor.CommandInvoker.executeOperations(CommandInvoker.java:57) ~[activiti-engine-7.1.0.M6.jar:na]
  23.     at org.activiti.engine.impl.interceptor.CommandInvoker.execute(CommandInvoker.java:42) ~[activiti-engine-7.1.0.M6.jar:na]
  24.     at org.activiti.engine.impl.interceptor.TransactionContextInterceptor.execute(TransactionContextInterceptor.java:48) ~[activiti-engine-7.1.0.M6.jar:na]
  25.     at org.activiti.engine.impl.interceptor.CommandContextInterceptor.execute(CommandContextInterceptor.java:59) ~[activiti-engine-7.1.0.M6.jar:na]
  26.     at org.activiti.spring.SpringTransactionInterceptor$1.doInTransaction(SpringTransactionInterceptor.java:47) ~[activiti-spring-7.1.0.M6.jar:na]
  27.     at org.springframework.transaction.support.TransactionTemplate.execute(TransactionTemplate.java:140) ~[spring-tx-5.1.13.RELEASE.jar:5.1.13.RELEASE]
  28.     at org.activiti.spring.SpringTransactionInterceptor.execute(SpringTransactionInterceptor.java:45) ~[activiti-spring-7.1.0.M6.jar:na]
  29.     at org.activiti.engine.impl.interceptor.LogInterceptor.execute(LogInterceptor.java:29) ~[activiti-engine-7.1.0.M6.jar:na]
  30.     at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:44) ~[activiti-engine-7.1.0.M6.jar:na]
  31.     at org.activiti.engine.impl.cfg.CommandExecutorImpl.execute(CommandExecutorImpl.java:39) ~[activiti-engine-7.1.0.M6.jar:na]
  32.     at org.activiti.engine.impl.RepositoryServiceImpl.deploy(RepositoryServiceImpl.java:82) ~[activiti-engine-7.1.0.M6.jar:na]
  33.     at org.activiti.engine.impl.repository.DeploymentBuilderImpl.deploy(DeploymentBuilderImpl.java:233) ~[activiti-engine-7.1.0.M6.jar:na]
  34.     at my.activiti.demo.com.web.DempController.run(DempController.java:49) ~[classes/:na]
  35.     at org.springframework.boot.SpringApplication.callRunner(SpringApplication.java:781) [spring-boot-2.1.12.RELEASE.jar:2.1.12.RELEASE]
  36.     ... 5 common frames omitted
  37. Caused by: org.xml.sax.SAXParseException: cvc-complex-type.2.4.a: 发现了以元素 'process' 开头的无效内容。应以 '{"http://www.omg.org/spec/BPMN/20100524/MODEL":import, "http://www.omg.org/spec/BPMN/20100524/MODEL":extension, "http://www.omg.org/spec/BPMN/20100524/MODEL":rootElement, "http://www.omg.org/spec/BPMN/20100524/DI":BPMNDiagram, "http://www.omg.org/spec/BPMN/20100524/MODEL":relationship}' 之一开头。
  38.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.createSAXParseException(ErrorHandlerWrapper.java:204) ~[na:1.8.0_261]
  39.     at com.sun.org.apache.xerces.internal.util.ErrorHandlerWrapper.error(ErrorHandlerWrapper.java:135) ~[na:1.8.0_261]
  40.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:396) ~[na:1.8.0_261]
  41.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:327) ~[na:1.8.0_261]
  42.     at com.sun.org.apache.xerces.internal.impl.XMLErrorReporter.reportError(XMLErrorReporter.java:284) ~[na:1.8.0_261]
  43.     at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator$XSIErrorReporter.reportError(XMLSchemaValidator.java:498) ~[na:1.8.0_261]
  44.     at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.reportSchemaError(XMLSchemaValidator.java:3574) ~[na:1.8.0_261]
  45.     at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.handleStartElement(XMLSchemaValidator.java:1958) ~[na:1.8.0_261]
  46.     at com.sun.org.apache.xerces.internal.impl.xs.XMLSchemaValidator.startElement(XMLSchemaValidator.java:816) ~[na:1.8.0_261]
  47.     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.scanStartElement(XMLNSDocumentScannerImpl.java:375) ~[na:1.8.0_261]
  48.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2786) ~[na:1.8.0_261]
  49.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:605) ~[na:1.8.0_261]
  50.     at com.sun.org.apache.xerces.internal.impl.XMLNSDocumentScannerImpl.next(XMLNSDocumentScannerImpl.java:113) ~[na:1.8.0_261]
  51.     at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:507) ~[na:1.8.0_261]
  52.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:867) ~[na:1.8.0_261]
  53.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:796) ~[na:1.8.0_261]
  54.     at com.sun.org.apache.xerces.internal.jaxp.validation.StreamValidatorHelper.validate(StreamValidatorHelper.java:152) ~[na:1.8.0_261]
  55.     at com.sun.org.apache.xerces.internal.jaxp.validation.ValidatorImpl.validate(ValidatorImpl.java:116) ~[na:1.8.0_261]
  56.     at javax.xml.validation.Validator.validate(Validator.java:124) ~[na:1.8.0_261]
  57.     at org.activiti.bpmn.converter.BpmnXMLConverter.validateModel(BpmnXMLConverter.java:213) ~[activiti-bpmn-converter-7.1.0.M6.jar:na]
  58.     at org.activiti.bpmn.converter.BpmnXMLConverter.convertToBpmnModel(BpmnXMLConverter.java:268) ~[activiti-bpmn-converter-7.1.0.M6.jar:na]
  59.     ... 29 common frames omitted

处理：

查看 bpmn 文件，发现有 xmlns=”” 的，去掉就好。

  1. <?xml version="1.0" encoding="UTF-8" standalone="yes"?>
  2. <definitions xmlns="http://www.omg.org/spec/BPMN/20100524/MODEL"
  3.              xmlns:omgdi="http://www.omg.org/spec/DD/20100524/DI"
  4.              xmlns:activiti="http://activiti.org/bpmn"
  5.              xmlns:omgdc="http://www.omg.org/spec/DD/20100524/DC"
  6.              xmlns:tns="http://www.activiti.org/test"
  7.              xmlns:xsd="http://www.w3.org/2001/XMLSchema"
  8.              xmlns:bpmndi="http://www.omg.org/spec/BPMN/20100524/DI"
  9.              xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  10.              expressionLanguage="http://www.w3.org/1999/XPath"
  11.              id="m1612336702745"
  12.              name=""
  13.              targetNamespace="http://www.activiti.org/test"
  14.              typeLanguage="http://www.w3.org/2001/XMLSchema">
  15.    <process xmlns="" id="process_demo" isClosed="false" isExecutable="true"
  16.             processType="None">
  17.       <startEvent id="_2" name="StartEvent"/>
  18.       <userTask activiti:exclusive="true" id="_3" name="UserTask"/>
  19.       <sequenceFlow id="_4" sourceRef="_2" targetRef="_3"/>
  20.       <endEvent id="_5" name="EndEvent"/>
  21.       <sequenceFlow id="_6" sourceRef="_3" targetRef="_5"/>
  22.    </process>
  23.    <bpmndi:BPMNDiagram xmlns=""
  24.                        documentation="background=#3C3F41;count=1;horizontalcount=1;orientation=0;width=842.4;height=1195.2;imageableWidth=832.4;imageableHeight=1185.2;imageableX=5.0;imageableY=5.0"
  25.                        id="Diagram-_1"
  26.                        name="New Diagram">
  27.       <bpmndi:BPMNPlane bpmnElement="process_demo">
  28.          <bpmndi:BPMNShape bpmnElement="_2" id="Shape-_2">
  29.             <omgdc:Bounds height="32.0" width="32.0" x="205.0" y="45.0"/>
  30.             <bpmndi:BPMNLabel>
  31.                <omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/>
  32.             </bpmndi:BPMNLabel>
  33.          </bpmndi:BPMNShape>
  34.          <bpmndi:BPMNShape bpmnElement="_3" id="Shape-_3">
  35.             <omgdc:Bounds height="55.0" width="85.0" x="175.0" y="110.0"/>
  36.             <bpmndi:BPMNLabel>
  37.                <omgdc:Bounds height="55.0" width="85.0" x="0.0" y="0.0"/>
  38.             </bpmndi:BPMNLabel>
  39.          </bpmndi:BPMNShape>
  40.          <bpmndi:BPMNShape bpmnElement="_5" id="Shape-_5">
  41.             <omgdc:Bounds height="32.0" width="32.0" x="200.0" y="205.0"/>
  42.             <bpmndi:BPMNLabel>
  43.                <omgdc:Bounds height="32.0" width="32.0" x="0.0" y="0.0"/>
  44.             </bpmndi:BPMNLabel>
  45.          </bpmndi:BPMNShape>
  46.          <bpmndi:BPMNEdge bpmnElement="_4" id="BPMNEdge__4" sourceElement="_2" targetElement="_3">
  47.             <omgdi:waypoint x="221.0" y="77.0"/>
  48.             <omgdi:waypoint x="221.0" y="110.0"/>
  49.             <bpmndi:BPMNLabel>
  50.                <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
  51.             </bpmndi:BPMNLabel>
  52.          </bpmndi:BPMNEdge>
  53.          <bpmndi:BPMNEdge bpmnElement="_6" id="BPMNEdge__6" sourceElement="_3" targetElement="_5">
  54.             <omgdi:waypoint x="216.0" y="165.0"/>
  55.             <omgdi:waypoint x="216.0" y="205.0"/>
  56.             <bpmndi:BPMNLabel>
  57.                <omgdc:Bounds height="0.0" width="0.0" x="0.0" y="0.0"/>
  58.             </bpmndi:BPMNLabel>
  59.          </bpmndi:BPMNEdge>
  60.       </bpmndi:BPMNPlane>
  61.    </bpmndi:BPMNDiagram>
  62. </definitions>

3. org.springframework.beans.factory.BeanCreationException: Error creating bean with name ‘processEngine’: FactoryBean threw exception on object creation; nested exception is org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error creating document instance. Cause: java.net.MalformedURLException

代码：

  1. @SpringBootApplication
  2. @MapperScan(basePackages = "my.activiti.demo.com.mapper")
  3. public class DemoMyBatisApp {
  5.     public static void main(String[] args) {
  6.         SpringApplication.run(DemoMyBatisApp.class, args);
  7.     }
  8. }

报错：

  1. 2021-02-03 18:53:16.914 ERROR 16724 --- [           main] o.s.boot.SpringApplication               : Application run failed
  3. org.springframework.context.ApplicationContextException: Unable to start web server; nested exception is org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
  4.     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:155) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  5.     at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:543) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  6.     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  7.     at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:742) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  8.     at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:389) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  9.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:311) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  10.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1213) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  11.     at org.springframework.boot.SpringApplication.run(SpringApplication.java:1202) [spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  12.     at my.activiti.demo.com.DemoMyBatisApp.main(DemoMyBatisApp.java:12) [classes/:na]
  13. Caused by: org.springframework.boot.web.server.WebServerException: Unable to start embedded Tomcat
  14.     at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:124) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  15.     at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.<init>(TomcatWebServer.java:86) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  16.     at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getTomcatWebServer(TomcatServletWebServerFactory.java:414) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  17.     at org.springframework.boot.web.embedded.tomcat.TomcatServletWebServerFactory.getWebServer(TomcatServletWebServerFactory.java:178) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  18.     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.createWebServer(ServletWebServerApplicationContext.java:179) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  19.     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.onRefresh(ServletWebServerApplicationContext.java:152) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  20.     ... 8 common frames omitted
  21. Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'servletEndpointRegistrar' defined in class path resource [org/springframework/boot/actuate/autoconfigure/endpoint/web/ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.class]: Bean instantiation via factory method failed; nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'processEngineEndpoint' defined in class path resource [org/activiti/spring/boot/EndpointAutoConfiguration.class]: Unsatisfied dependency expressed through method 'processEngineEndpoint' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error creating document instance.  Cause: java.net.MalformedURLException
  22.     at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:627) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  23.     at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:607) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  24.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  25.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  26.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  27.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  28.     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  29.     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  30.     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  31.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:204) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  32.     at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:211) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  33.     at org.springframework.boot.web.servlet.ServletContextInitializerBeans.getOrderedBeansOfType(ServletContextInitializerBeans.java:202) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  34.     at org.springframework.boot.web.servlet.ServletContextInitializerBeans.addServletContextInitializerBeans(ServletContextInitializerBeans.java:96) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  35.     at org.springframework.boot.web.servlet.ServletContextInitializerBeans.<init>(ServletContextInitializerBeans.java:85) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  36.     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.getServletContextInitializerBeans(ServletWebServerApplicationContext.java:252) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  37.     at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.selfInitialize(ServletWebServerApplicationContext.java:226) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  38.     at org.springframework.boot.web.embedded.tomcat.TomcatStarter.onStartup(TomcatStarter.java:53) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  39.     at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5132) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  40.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  41.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  42.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  43.     at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) ~[na:1.8.0_261]
  44.     at java.util.concurrent.FutureTask.run(FutureTask.java) ~[na:1.8.0_261]
  45.     at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  46.     at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) ~[na:1.8.0_261]
  47.     at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  48.     at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:841) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  49.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  50.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1384) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  51.     at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1374) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  52.     at java.util.concurrent.FutureTask.run$$$capture(FutureTask.java:266) ~[na:1.8.0_261]
  53.     at java.util.concurrent.FutureTask.run(FutureTask.java) ~[na:1.8.0_261]
  54.     at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  55.     at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) ~[na:1.8.0_261]
  56.     at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:909) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  57.     at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:262) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  58.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  59.     at org.apache.catalina.core.StandardService.startInternal(StandardService.java:421) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  60.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  61.     at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:932) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  62.     at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  63.     at org.apache.catalina.startup.Tomcat.start(Tomcat.java:456) ~[tomcat-embed-core-9.0.21.jar:9.0.21]
  64.     at org.springframework.boot.web.embedded.tomcat.TomcatWebServer.initialize(TomcatWebServer.java:105) ~[spring-boot-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  65.     ... 13 common frames omitted
  66. Caused by: org.springframework.beans.BeanInstantiationException: Failed to instantiate [org.springframework.boot.actuate.endpoint.web.ServletEndpointRegistrar]: Factory method 'servletEndpointRegistrar' threw exception; nested exception is org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'processEngineEndpoint' defined in class path resource [org/activiti/spring/boot/EndpointAutoConfiguration.class]: Unsatisfied dependency expressed through method 'processEngineEndpoint' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error creating document instance.  Cause: java.net.MalformedURLException
  67.     at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:185) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  68.     at org.springframework.beans.factory.support.ConstructorResolver.instantiate(ConstructorResolver.java:622) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  69.     ... 55 common frames omitted
  70. Caused by: org.springframework.beans.factory.UnsatisfiedDependencyException: Error creating bean with name 'processEngineEndpoint' defined in class path resource [org/activiti/spring/boot/EndpointAutoConfiguration.class]: Unsatisfied dependency expressed through method 'processEngineEndpoint' parameter 0; nested exception is org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error creating document instance.  Cause: java.net.MalformedURLException
  71.     at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:769) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  72.     at org.springframework.beans.factory.support.ConstructorResolver.instantiateUsingFactoryMethod(ConstructorResolver.java:509) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  73.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.instantiateUsingFactoryMethod(AbstractAutowireCapableBeanFactory.java:1321) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  74.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBeanInstance(AbstractAutowireCapableBeanFactory.java:1160) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  75.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:555) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  76.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:515) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  77.     at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:320) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  78.     at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:222) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  79.     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:318) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  80.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  81.     at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1105) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  82.     at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.createEndpointBean(EndpointDiscoverer.java:141) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  83.     at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.createEndpointBeans(EndpointDiscoverer.java:131) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  84.     at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.discoverEndpoints(EndpointDiscoverer.java:120) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  85.     at org.springframework.boot.actuate.endpoint.annotation.EndpointDiscoverer.getEndpoints(EndpointDiscoverer.java:114) ~[spring-boot-actuator-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  86.     at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration.servletEndpointRegistrar(ServletEndpointManagementContextConfiguration.java:72) ~[spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  87.     at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$782daf2.CGLIB$servletEndpointRegistrar$0(<generated>) ~[spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  88.     at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$782daf2$$FastClassBySpringCGLIB$$c806bf17.invoke(<generated>) ~[spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  89.     at org.springframework.cglib.proxy.MethodProxy.invokeSuper(MethodProxy.java:244) ~[spring-core-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  90.     at org.springframework.context.annotation.ConfigurationClassEnhancer$BeanMethodInterceptor.intercept(ConfigurationClassEnhancer.java:363) ~[spring-context-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  91.     at org.springframework.boot.actuate.autoconfigure.endpoint.web.ServletEndpointManagementContextConfiguration$WebMvcServletEndpointManagementContextConfiguration$$EnhancerBySpringCGLIB$$782daf2.servletEndpointRegistrar(<generated>) ~[spring-boot-actuator-autoconfigure-2.1.6.RELEASE.jar:2.1.6.RELEASE]
  92.     at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_261]
  93.     at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_261]
  94.     at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_261]
  95.     at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_261]
  96.     at org.springframework.beans.factory.support.SimpleInstantiationStrategy.instantiate(SimpleInstantiationStrategy.java:154) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  97.     ... 56 common frames omitted
  98. Caused by: org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'processEngine': FactoryBean threw exception on object creation; nested exception is org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error creating document instance.  Cause: java.net.MalformedURLException
  99.     at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:178) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  100.     at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.getObjectFromFactoryBean(FactoryBeanRegistrySupport.java:101) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  101.     at org.springframework.beans.factory.support.AbstractBeanFactory.getObjectForBeanInstance(AbstractBeanFactory.java:1674) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  102.     at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getObjectForBeanInstance(AbstractAutowireCapableBeanFactory.java:1249) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  103.     at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:330) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  104.     at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:199) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  105.     at org.springframework.beans.factory.config.DependencyDescriptor.resolveCandidate(DependencyDescriptor.java:277) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  106.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.doResolveDependency(DefaultListableBeanFactory.java:1251) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  107.     at org.springframework.beans.factory.support.DefaultListableBeanFactory.resolveDependency(DefaultListableBeanFactory.java:1171) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  108.     at org.springframework.beans.factory.support.ConstructorResolver.resolveAutowiredArgument(ConstructorResolver.java:857) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  109.     at org.springframework.beans.factory.support.ConstructorResolver.createArgumentArray(ConstructorResolver.java:760) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  110.     ... 81 common frames omitted
  111. Caused by: org.activiti.engine.ActivitiException: Error while building ibatis SqlSessionFactory: Error creating document instance.  Cause: java.net.MalformedURLException
  112.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.initSqlSessionFactory(ProcessEngineConfigurationImpl.java:1202) ~[activiti-engine-7.1.0.M4.jar:na]
  113.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.init(ProcessEngineConfigurationImpl.java:892) ~[activiti-engine-7.1.0.M4.jar:na]
  114.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.buildProcessEngine(ProcessEngineConfigurationImpl.java:847) ~[activiti-engine-7.1.0.M4.jar:na]
  115.     at org.activiti.spring.SpringProcessEngineConfiguration.buildProcessEngine(SpringProcessEngineConfiguration.java:79) ~[activiti-spring-7.1.0.M4.jar:na]
  116.     at org.activiti.spring.ProcessEngineFactoryBean.getObject(ProcessEngineFactoryBean.java:57) ~[activiti-spring-7.1.0.M4.jar:na]
  117.     at org.activiti.spring.ProcessEngineFactoryBean.getObject(ProcessEngineFactoryBean.java:32) ~[activiti-spring-7.1.0.M4.jar:na]
  118.     at org.springframework.beans.factory.support.FactoryBeanRegistrySupport.doGetObjectFromFactoryBean(FactoryBeanRegistrySupport.java:171) ~[spring-beans-5.1.8.RELEASE.jar:5.1.8.RELEASE]
  119.     ... 91 common frames omitted
  120. Caused by: org.apache.ibatis.builder.BuilderException: Error creating document instance.  Cause: java.net.MalformedURLException
  121.     at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:263) ~[mybatis-3.5.6.jar:3.5.6]
  122.     at org.apache.ibatis.parsing.XPathParser.<init>(XPathParser.java:127) ~[mybatis-3.5.6.jar:3.5.6]
  123.     at org.apache.ibatis.builder.xml.XMLMapperBuilder.<init>(XMLMapperBuilder.java:81) ~[mybatis-3.5.6.jar:3.5.6]
  124.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.parseCustomMybatisXMLMappers(ProcessEngineConfigurationImpl.java:1246) ~[activiti-engine-7.1.0.M4.jar:na]
  125.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.parseMybatisConfiguration(ProcessEngineConfigurationImpl.java:1239) ~[activiti-engine-7.1.0.M4.jar:na]
  126.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.initMybatisConfiguration(ProcessEngineConfigurationImpl.java:1222) ~[activiti-engine-7.1.0.M4.jar:na]
  127.     at org.activiti.engine.impl.cfg.ProcessEngineConfigurationImpl.initSqlSessionFactory(ProcessEngineConfigurationImpl.java:1198) ~[activiti-engine-7.1.0.M4.jar:na]
  128.     ... 97 common frames omitted
  129. Caused by: java.net.MalformedURLException: null
  130.     at java.net.URL.<init>(URL.java:644) ~[na:1.8.0_261]
  131.     at java.net.URL.<init>(URL.java:507) ~[na:1.8.0_261]
  132.     at java.net.URL.<init>(URL.java:456) ~[na:1.8.0_261]
  133.     at com.sun.org.apache.xerces.internal.impl.XMLEntityManager.setupCurrentEntity(XMLEntityManager.java:619) ~[na:1.8.0_261]
  134.     at com.sun.org.apache.xerces.internal.impl.XMLVersionDetector.determineDocVersion(XMLVersionDetector.java:150) ~[na:1.8.0_261]
  135.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:831) ~[na:1.8.0_261]
  136.     at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:796) ~[na:1.8.0_261]
  137.     at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:142) ~[na:1.8.0_261]
  138.     at com.sun.org.apache.xerces.internal.parsers.DOMParser.parse(DOMParser.java:247) ~[na:1.8.0_261]
  139.     at com.sun.org.apache.xerces.internal.jaxp.DocumentBuilderImpl.parse(DocumentBuilderImpl.java:339) ~[na:1.8.0_261]
  140.     at org.apache.ibatis.parsing.XPathParser.createDocument(XPathParser.java:261) ~[mybatis-3.5.6.jar:3.5.6]
  141.     ... 103 common frames omitted
  142. Caused by: java.lang.NullPointerException: null
  143.     at java.net.URL.<init>(URL.java:549) ~[na:1.8.0_261]
  144.     ... 113 common frames omitted

处理：