Spring MVC实现远程调用并获取返回值? 400 报错

ajax跨域请求：

$("#jifei").click(function() {

       Tips.confirm("确认计费？", function() {
           var cmd_uuid = $('input[name="cmd_uuid"]').val();
           $.ajax({
               url : "http://127.0.0.1:8083/tally/command/tally-order-reset",
               data : {
                   "cmd_uuid" : cmd_uuid
               },
               type : "get",
success : function(re) {
                   Tips.tips(re.msg,re.success);
               },
               error : function(data) {
                   Tips.tips(data.msg+"返回失败");
               }
           });
       });

在被请求项目里面的spring.xml中加上：（注意：这里需要引用spring4.2及版本更高的，否则不支持<mvc:cors>）

<mvc:cors>
<mvc:mapping path="/**" allowed-origins="*" allow-credentials="true" max-age="1800" allowed-methods="GET,POST,OPTIONS"/>
</mvc:cors>

如果添加了拦截器需要把/tally/command/tally-order-reset加上去：

<mvc:interceptor>
           <mvc:mapping path="/**" />
           <mvc:exclude-mapping path="/tally/command/tally-order-reset" />
           <bean class="com.feiliks.hn.common.interceptor.PermissionInterceptor" />
</mvc:interceptor>

然后再被请求的tally-order-reset方法上面加上：@CrossOrigin 代码如下

@CrossOrigin(origins = "*", maxAge = 3600)
@RequestMapping("tally-order-reset")
@ResponseBody
public ResponseModel reset(Long cmd_uuid){
       Boolean ret = true;
       ret = this.redisDao.setIfAbsentValue("tally-order-reset:" + cmd_uuid.toString(), 1);
       if (ret){
           this.redisDao.expire("tally-order-reset:" + cmd_uuid.toString(), 3, TimeUnit.MINUTES);
           this.tallyOrderService.reset(cmd_uuid);
           this.redisDao.delKey("tally-order-reset:" + cmd_uuid.toString());
       }else{
           ErrorType et = this.redisDao.getHashValue(RedisCacheTableKey.KEY_ERROR_TYPE, "S0001", ErrorType.class)==null?new ErrorType("S0001") : this.redisDao.getHashValue(RedisCacheTableKey.KEY_ERROR_TYPE, "S0001", ErrorType.class);
           return super.fail(et.getTrace(), et);
       }
       return super.success("计费成功！");

   }