httpClient請求cxf-webservice框架-根據accept動態響應json或xml

根據請求頭accept的內容（application/xml、application/json）動態的讓服務端響應xml或json數據（同理也能夠經過content-type動態的進行xml或json參數請求）

 

1. 定義webservice服務端與實體類

@Service("cxfService")
public class TestCxfJsonXml {
    
    @POST
    @Path(value = "/person")
    @Produces({ MediaType.APPLICATION_JSON ,MediaType.APPLICATION_XML})
    @Consumes({ MediaType.APPLICATION_JSON })
    public Person info(Person person){
        System.out.println(JSON.toJSONString(person,true));
        return person;
    }

    @Data //lombok
    @XmlRootElement(name="person")
    static class Person{
        private String name;
        private int age;
    }
}

 

2. 經過配置將服務註冊到cxf

<?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:context="http://www.springframework.org/schema/context" xmlns:jaxrs="http://cxf.apache.org/jaxrs"
    xsi:schemaLocation="http://www.springframework.org/schema/beans
        http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
        http://cxf.apache.org/jaxrs
        http://cxf.apache.org/schemas/jaxrs.xsd">

    <!-- 初始化cxf servlet -->
    <import resource="classpath:META-INF/cxf/cxf.xml" />
    <import resource="classpath:META-INF/cxf/cxf-servlet.xml" />

    <!-- 日誌攔截器bean，可自定義攔截器 -->
    <bean id="loggingInInterceptor" class="org.apache.cxf.ext.logging.LoggingInInterceptor" />
    <bean id="loggingOutInterceptor" class="org.apache.cxf.ext.logging.LoggingOutInterceptor" />
   
    <!-- 發佈方式1：使用JAXRSServerFactoryBean -->
    <jaxrs:server address="/service">
        <jaxrs:serviceBeans>
            <ref bean="cxfService" />
        </jaxrs:serviceBeans>
        <!-- Provider 進行json、xml解析的實現類-->
        <jaxrs:providers>
            <bean class="com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider" />
            <bean class="com.fasterxml.jackson.jaxrs.xml.JacksonXMLProvider" />
        </jaxrs:providers>
        <!-- 輸入日誌攔截器 -->
        <jaxrs:inInterceptors>
            <ref bean="loggingInInterceptor" />
        </jaxrs:inInterceptors>
        <!-- 輸出日誌攔截器 -->
        <jaxrs:outInterceptors>
            <ref bean="loggingOutInterceptor" />
        </jaxrs:outInterceptors>
    </jaxrs:server>
</beans>

 

3. pom文件引入json、xml解析實現類（其餘引入省略）

<dependency>
   <groupId>com.fasterxml.jackson.jaxrs</groupId>
   <artifactId>jackson-jaxrs-json-provider</artifactId>
   <version>2.4.1</version>
</dependency>
<dependency>
   <groupId>com.fasterxml.jackson.jaxrs</groupId>
   <artifactId>jackson-jaxrs-xml-provider</artifactId>
   <version>2.9.9</version>
</dependency>
<dependency>
   <groupId>com.fasterxml.jackson.jaxrs</groupId>
   <artifactId>jackson-jaxrs-base</artifactId>
   <version>2.9.9</version>
</dependency>
<dependency>
   <groupId>com.fasterxml.jackson.core</groupId>
   <artifactId>jackson-annotations</artifactId>
   <version>2.9.9</version>
</dependency>

 

4. 經過HTTPClient進行json請求，json響應

HttpClient client = new HttpClient();
PostMethod post = new PostMethod(url);
RequestEntity entity = null;
client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"UTF-8");
entity = new StringRequestEntity("{\"name\":\"tom\",\"age\":28}", "application/json", "UTF-8");
post.setRequestEntity(entity);
post.setRequestHeader("Accept","application/json");
client.executeMethod(post);
String response = post.getResponseBodyAsString();

 

5. 經過HTTPClient進行json請求，xml響應

HttpClient client = new HttpClient();
PostMethod post = new PostMethod(url);
RequestEntity entity = null;
client.getParams().setParameter(HttpMethodParams.HTTP_CONTENT_CHARSET,"UTF-8");
entity = new StringRequestEntity("{\"name\":\"tom\",\"age\":28}", "application/json", "UTF-8");
post.setRequestEntity(entity);
post.setRequestHeader("Accept","application/xml");
client.executeMethod(post);
String response = post.getResponseBodyAsString();