1、导包

<!-- https://mvnrepository.com/artifact/com.alibaba/fastjson --> <dependency> <groupId>com.alibaba</groupId> <artifactId>fastjson</artifactId> <version>1.2.58</version> </dependency>

2、配置文件

<mvc:annotation-driven> <mvc:message-converters register-defaults="true"> <bean class="com.alibaba.fastjson.support.spring.FastJsonHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/html;charset=UTF-8</value> <value>application/json</value> <value>application/xml;charset=UTF-8</value> </list> </property> </bean> </mvc:message-converters> </mvc:annotation-driven>

3、jsp代码

<script> $(function () { $.ajax({ url:"${pageContext.servletContext.contextPath}/user/json", data:JSON.stringify({username:"tom"}),//JSON.stringify()必须有,否则只会当做表单的格式提交 dataType:"json", type:"post", contentType:"application/json;charset=utf-8",//如果想以json格式把数据提交到后台的话，这个必须有，否则只会当做表单提交 success:function (data) { alert(data.username); } }); });</script>

4、控制器代码

@RequestMapping("/json") public @ResponseBody User jsonToObject(@RequestBody User user){ System.out.println("--------"); System.out.println(user); return user; }

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。