SpringMVC怎么开发返回json数据的web service 接口

答案:2 悬赏:60

解决时间 2021-02-20 18:25

提问者网友：依靠
2021-02-19 19:27

最佳答案

二级知识专家网友：情战凌云蔡小葵
2021-02-19 19:53

利用spring mvc3的注解@ResponseBody
@ResponseBody
  @RequestMapping("/list")
  public List list(ModelMap modelMap) {
    String hql = "select c from Clothing c ";
    Page page = new Page();
    page.setPageSize(6);
    page  = clothingServiceImpl.queryForPageByHql(page, hql);

    return page.getResult();
  }

全部回答

1楼网友：留下所有热言
2021-02-19 21:03

package xxx; import java.io.printwriter; import javax.servlet.http.httpservletrequest; import javax.servlet.http.httpservletresponse; import net.sf.json.jsonarray; import net.sf.json.jsonobject; public class protocolhelper { public static void writejson2response(jsonobject json, httpservletresponse response) throws exception { response.setcontenttype("text/json;charset=utf-8"); printwriter out = response.getwriter(); out.print(json); out.flush(); out.close(); } public static void writejson2ajaxresponse(httpservletrequest request, jsonobject json, httpservletresponse response) throws exception { response.setcontenttype("text/json;charset=utf-8"); string callback = request.getparameter("callback"); printwriter out = response.getwriter(); out.print(callback+"("+json+")"); out.flush(); out.close(); } public static void writejson2response(jsonarray json, httpservletresponse response) throws exception { response.setcontenttype("text/json;charset=utf-8"); printwriter out = response.getwriter(); out.print(json); out.flush(); out.close(); } }上面是返回json数据的工具类在action中你可以使用 jsonobject json = new jsonobject(); json.put("status", "success"); protocolhelper.writejson2response(json, response); 来向前端返回你想要传输的json数据

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