Question

我遇到了春季3.1和泽西岛的问题我想在我的REST服务上生成JSON，但我得到正常的HTML错误

这是我的ExceptionMapper

@Provider
public class MyExceptionMapper implements ExceptionMapper<ResourceNotFoundException>{

@Override
public Response toResponse(ResourceNotFoundException ex) {
    return Response.status(404).entity(ex.getMessage()).type(MediaType.APPLICATION_JSON_TYPE).build();
}

}

并在我的Rest方法中抛出ResourceNotFoundException

@GET
@Path("/{uid}")
@Produces("application/json")
public Response getUser(@PathParam("uid") Long userId) {
            User user = userService.getUserById(userId);
            if(user==null) throw new ResourceNotFroundException("There is no user with id "+userId);
            return Response.status(Status.OK).entity(mapper.map(user, UserDTO.class)).build();
}

这是我的应用程序上下文

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="
http://www.springframework.org/schema/beans 
http://www.springframework.org/schema/beans/spring-beans.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/context 
http://www.springframework.org/schema/context/spring-context-3.0.xsd">

<context:component-scan base-package="xxx" />
<mvc:annotation-driven />
<mvc:default-servlet-handler />
<!-- Handles HTTP GET requests for /resources/** by efficiently serving 
    up static resources in the ${webappRoot}/resources directory -->
<mvc:resources mapping="/home/resources/**" location="/resources/" />

<import resource="classpath*:bpm-applicationContext.xml" />
<import resource="classpath*:dao-applicationContext.xml" />
<import resource="classpath*:monitor-applicationContext.xml" />
<import resource="classpath*:logic-applicationContext.xml" />

<mvc:interceptors>
    <mvc:interceptor>
        <mvc:mapping path="home/**" />
        <bean id="webContentInterceptor"
            class="org.springframework.web.servlet.mvc.WebContentInterceptor">
            <property name="cacheSeconds" value="0" />
            <property name="useExpiresHeader" value="true" />
            <property name="useCacheControlHeader" value="true" />
            <property name="useCacheControlNoStore" value="true" />
        </bean>
    </mvc:interceptor>
</mvc:interceptors>

<bean
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
    <property name="messageConverters">
        <list>
            <ref bean="jsonConverter" />
        </list>
    </property>
</bean>
<bean id="stringHttpMessageConverter" class="org.springframework.http.converter.StringHttpMessageConverter" />
<bean id="methodHandlerExceptionResolver" class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerExceptionResolver">
    <property name="messageConverters">
        <list>
            <ref bean="stringHttpMessageConverter"/>
            <ref bean="jsonConverter"/>
        </list>
    </property>
</bean>
<bean id="jsonConverter"
    class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
    <property name="supportedMediaTypes" value="application/json" />
</bean>
<bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix" value="/WEB-INF/views/" />
    <property name="suffix" value=".html" />
</bean>

<!--  Dozer mapping for Entity <-> DTO mappings -->
<bean id="org.dozer.Mapper" class="org.dozer.DozerBeanMapper">
    <property name="mappingFiles">
        <list>
            <value>dto-mappings.xml</value>
        </list>
    </property>
</bean>
</beans>

和我的web.xml文件：

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/j2ee" xmlns:web="http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd"
version="2.4">
<display-name>Mist</display-name>

<listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>


<servlet>
  <servlet-name>mvc-dispatcher</servlet-name>
  <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  <load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
  <servlet-name>mvc-dispatcher</servlet-name>
  <url-pattern>/*</url-pattern>
</servlet-mapping>    
<servlet>
    <servlet-name>JerseyREST</servlet-name>
    <servlet-class>com.sun.jersey.spi.spring.container.servlet.SpringServlet</servlet-class>
    <init-param>
        <param-name>com.sun.jersey.config.property.packages</param-name>
        <param-value>com.comarch.mist.ws.rest.v1</param-value>
    </init-param>
    <init-param>
        <param-name>com.sun.jersey.api.json.POJOMappingFeature</param-name>
        <param-value>true</param-value>
    </init-param>
    <init-param>
        <param-name>com.sun.jersey.spi.container.ContainerRequestFilters</param-name>
        <param-value>com.comarch.mist.ws.rest.v1.auth.AuthenticationFilter</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
</servlet>

<servlet-mapping>
    <servlet-name>JerseyREST</servlet-name>
    <url-pattern>/rest/1/*</url-pattern>
</servlet-mapping>

</web-app>

正如你所看到的，我也是普通的html servlet。我想只在我的REST Servlet中处理JSON格式的错误。因此，来自/ rest / v1 / **的每个错误请求都应该产生JSON异常，并且对其他URL的请求应该返回HTML格式的正常异常。

修改

当我返回HTTP 200时，用户数据是JSON格式

ExceptionMapper不生成JSON

0 个答案: