Spring MVC的@ResponseBody返回JSON串

最新推荐文章于 2025-04-08 17:40:12 发布

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本文介绍如何在Spring MVC中配置JSON消息转换器，并展示具体的XML配置代码及所需依赖库。通过示例代码展示了如何使用MappingJacksonHttpMessageConverter进行JSON数据的处理。

Xml代码
<bean class ="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >
    <property name="messageConverters">
<list>
   <ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />

<bean class ="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter" >
    <property name="messageConverters">
<list>
   <ref bean="mappingJacksonHttpMessageConverter" />
</list>
</property>
</bean>
<bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter" />

需要以下两个jar包：

Xml代码
<dependency org="org.codehaus.jackson" name="jackson-core-asl" rev="1.5.5" conf="runtime->default" />
<dependency org="org.codehaus.jackson" name="jackson-mapper-asl" rev="1.5.5" conf="runtime->default" />

<dependency org="org.codehaus.jackson" name="jackson-core-asl" rev="1.5.5" conf="runtime->default" />
<dependency org="org.codehaus.jackson" name="jackson-mapper-asl" rev="1.5.5" conf="runtime->default" />

Java代码
@RequestMapping(value="/nogood", method=RequestMethod.GET)
public @ResponseBody CmUser execute(String userid) {
CmUser u = new CmUser();
u.setAge(16);
u.setName("测试用户");
return u;
}