SpringMVC 統(tǒng)一返回JSON格式數(shù)據(jù)到前端

        有時(shí)在給APP做接口功能的時(shí)候，都是返回JSON格式的數(shù)據(jù)，所以最好的只好在工程設(shè)置一個(gè)統(tǒng)一的數(shù)據(jù)返回方式

        在SpringMVC 直接配置XML可以產(chǎn)生這種配置，比較簡(jiǎn)單

        Spring的版本我用的是4.3.3的

<bean id="mappingJacksonHttpMessageConverter"

    class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">

<property name="supportedMediaTypes">

<list>

<value>application/json</value>

<value>application/javascript</value>

<value>text/json</value>

<value>text/javascript</value>

</list>

</property>

</bean>

<bean id="httpMessageConverter"

        class="org.springframework.http.converter.StringHttpMessageConverter">

<property name="supportedMediaTypes">

<list>

<value>text/plain;charset=UTF-8</value>

</list>

</property>

</bean>

<!-- 統(tǒng)一返回JSON格式數(shù)據(jù) -->

<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">

<property name="messageConverters">

<list>

<ref bean="httpMessageConverter" />

<ref bean="mappingJacksonHttpMessageConverter" />

</list>

</property>

</bean>

那么接口方法 你就可以隨便返回?cái)?shù)據(jù)了

@RequestMapping("/user/list")

@ResponseBody

public List getSelectAll(Model model) throws Exception {

List list = null;

try {

list = userService.selectAll();

model.addAttribute("result", list);

} catch (Exception e) {

e.printStackTrace();

}

return list;

}