SpringMVC中JSONP的基本使用

 1 @RequestMapping("/check/{param}/{type}")
 2     @ResponseBody
 3     public Object checkData(@PathVariable String param, @PathVariable Integer type, String callback) {
 4 
 5         TaotaoResult result = null;
 6 
 7         // 参数有效性校验
 8         if (StringUtils.isBlank(param)) {
 9             result = TaotaoResult.build(400, "校验内容不能为空");
10         }
11         if (type == null) {
12             result = TaotaoResult.build(400, "校验内容类型不能为空");
13         }
14         if (type != 1 && type != 2 && type != 3) {
15             result = TaotaoResult.build(400, "校验内容类型错误");
16         }
17         // 校验出错
18         if (null != result) {
19             if (null != callback) {
20                 JSONPObject jsonpObject = new JSONPObject(callback, result);
21                 return jsonpObject;
22             } else {
23                 return result;
24             }
25         }
26         // 调用服务
27         try {
28             result = userService.checkData(param, type);
29 
30         } catch (Exception e) {
31             result = TaotaoResult.build(500, ExceptionUtil.getStackTrace(e));
32         }
33 
34         if (null != callback) {
35             JSONPObject jsonpObject = new JSONPObject(callback, result);
36             return jsonpObject;
37 //            MappingJacksonValue mappingJacksonValue = new MappingJacksonValue(result);
38         //    mappingJacksonValue.setJsonpFunction(callback);
39 //            mappingJacksonValue.setValue(callback);
40 //            return mappingJacksonValue;
41         } else {
42             return result;
43         }
44     }