SpringMVC配置返回JSON数据格式

1.pom.xml

<!-- springmvc转json(注意spring4.x整合的话,jackson版本一定要在2.4以上才行) --><dependency>      <groupId>com.fasterxml.jackson.core</groupId>      <artifactId>jackson-core</artifactId>      <version>2.8.9</version>  </dependency>  <dependency>      <groupId>com.fasterxml.jackson.core</groupId>      <artifactId>jackson-databind</artifactId>      <version>2.8.9</version>  </dependency>

2.配置springmvc.xml

<!-- 开启注解扫描 --><context:component-scan base-package="com.demo.action" /> <!-- springmvc转json配置 --><mvc:annotation-driven></mvc:annotation-driven>

3.action层

@RequestMapping(value="/demo.action")@ResponseBodypublic ReturnObject demo(){    ReturnObject returnObject = new ReturnObject();    returnObject.setSuccessMessage("测试数据", Thread.currentThread().getStackTrace()[1].getMethodName());    return returnObject;}

也可以这么写

@RequestMapping(value="/demo.action")public @ResponseBody ReturnObject demo(){    ReturnObject returnObject = new ReturnObject();    returnObject.setSuccessMessage("测试数据", Thread.currentThread().getStackTrace()[1].getMethodName());          return returnObject;}