spring mvc支持返回json

@ResponseBody@RequestMapping(value = "/test", produces = "application/json;charset=UTF-8")public Map<String, Object> test() {    Map<String, Object> map = new HashMap<String, Object>();    map.put("success", true);    map.put("data", "your data");    return map;}

给RequestMapping方法加上@ResponseBody注解，直接return Map即可。

{"success":true,"data":"your data"}

需要添加jar

<dependency>    <groupId>com.fasterxml.jackson.core</groupId>    <artifactId>jackson-databind</artifactId>    <version>2.4.0</version></dependency>