Student student = new Student();
Map paramap = req.getParameterMap();
//获取前端提交的数据
try {
BeanUtils.populate(student,paramap);
}catch (IllegalAccessException e) {
e.printStackTrace();
}catch (InvocationTargetException e) {
e.printStackTrace();
}
BeanUtils.populate方法可以将Map类型的键值,转入到bean中保存,这种方法或许可以传递中文,地址栏传递会乱码