1：String +ResponseBody = 返回值为String
@RequestMapping("/testResponseBody")
@ResponseBody
public String testResponseBody(){
return "success";
}
alert---success 2：对象+ResponseBody = json对象
@RequestMapping("/testResponseBody2")
@ResponseBody
public Student testResponseBody2(){
Student s = new Student();
s.setAge(11);
s.setName("11");
return s;
}
alert ---{"age":11,"name":"11"}
3：String +ResponseBody = String
@RequestMapping("/testResponseBody3")
@ResponseBody
public String testResponseBody3(){
return JSON.toJSONString(SysResult.resultOK());
}
alert {"resultcode":0,"resultdesc":""}
字符串可以转换为json对象
4：void+Response
@RequestMapping("/testResponseBody5")
public void testResponseBody5(HttpServletResponse response){
response.setContentType("text/html");
PrintWriter out= null;
try {
out = response.getWriter();
out.println(JSON.toJSONString(SysResult.resultOK()));
out.flush();
out.close();
} catch (IOException e) {
e.printStackTrace();
}
}
{"resultcode":0,"resultdesc":""}
