快速依赖

  1.         <dependency>
  2.             <groupId>org.apache.velocity</groupId>
  3.             <artifactId>velocity</artifactId>
  4.             <version>1.7</version>
  5.         </dependency>
  7.         <dependency>
  8.             <groupId>org.apache.velocity</groupId>
  9.             <artifactId>velocity-tools</artifactId>
  10.             <version>2.0</version>
  11.         </dependency>

使用字符串模板

  1.         // 初始化模板引擎
  2.         VelocityEngine ve = new VelocityEngine();
  3.         ve.init();
  4.         String text = "Hello, ${name}";
  5.         // 设置变量
  6.         VelocityContext ctx = new VelocityContext();
  7.         ctx.put("name", "Velocity");
  8.         // 输出
  9.         StringWriter sw = new StringWriter();
  10.         ve.evaluate(ctx, sw, "test", text);
  11.         System.out.println(sw.toString());

使用模板文件

  1.         VelocityEngine ve = new VelocityEngine();
  2.         ve.setProperty(RuntimeConstants.RESOURCE_LOADER, "classpath");
  3.         ve.setProperty("classpath.resource.loader.class", ClasspathResourceLoader.class.getName());
  4.         ve.init();
  5.         // 获取模板文件
  6.         Template t = ve.getTemplate("template/hello.vm"); // resources下的template目录
  7.         // 设置变量
  8.         VelocityContext ctx = new VelocityContext();
  9.         ctx.put("name", "Velocity");
  10.         // 输出
  11.         StringWriter sw = new StringWriter();
  12.         t.merge(ctx, sw);
  13.         System.out.println(sw.toString());

参考

https://www.jianshu.com/p/5913903324ff