Spring MVC-如何在Rest Controller中将简单的String作为JSON返回

返回

text/plain

public class StringResponse {    private String response;    public StringResponse(String s) {        this.response = s;    }    // get/set omitted...}

将你的响应类型设置为MediaType.APPLICATION_JSON_VALUE（= “application/json”）

@RequestMapping(value = "/getString", method = RequestMethod.GET,     produces = MediaType.APPLICATION_JSON_VALUE)

并且你将拥有一个类似于

{  "response" : "your string value" }