解决方案 »

  1.   

    你的structs配置有问题,那个url地址根本没有找到。。
      

  2.   

    补充:(转换成json后打印出来的结果为2次重复的)
    public String findAllUserJson(){
    HttpServletRequest req = ServletActionContext.getRequest();
    List<Map<String, Object>> rows=new ArrayList<Map<String,Object>>();
    rows=userService.selectUser();
    Map<String, Object> obj = new HashMap<String, Object>();
    obj.put("total", rows.size());
    obj.put("rows", rows);
    //obj.put("result", rows);
    result=JSONObject.fromObject(obj);
    System.out.println("resultresult="+result);
    //List<User> users = userService.selectUserByCondition(new User());
    return "userListJson";
    打印结果为:
    resultresult={"total":2,"rows":[{"AGE":10,"age":10,"address":"address001","NAME":"zhangsan","name":"zhangsan","id":"001","ADDRESS":"address001","ID":"001"},{"AGE":20,"age":20,"address":"address002","NAME":"wangwu","name":"wangwu","id":"002","ADDRESS":"address002","ID":"002"}]}