Spring整合CXF webservice restful实例详解

webservice restful接口跟soap协议的接口实现大同小异，只是在提供服务的类/接口的注解上存在差异，具体看下面的代码，然后自己对比下就可以了。

用到的基础类

User.java

@XmlRootElement(name="User")
public class User {
private String userName;
private String sex;
private int age;
public User(String userName, String sex, int age) {
super();
this.userName = userName;
this.sex = sex;
this.age = age;
}
public User() {
super();
}
public String getUserName() {
return userName;
}
public void setUserName(String userName) {
this.userName = userName;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public static void main(String[] args) throws IOException {
System.setProperty("http.proxySet", "true");
System.setProperty("http.proxyHost", "192.168.1.20");
System.setProperty("http.proxyPort", "8080");
URL url = new URL("http://www.baidu.com");
URLConnection con =url.openConnection();
System.out.println(con);
}
}

接下来是服务提供类，PhopuRestfulService.java

@Path("/phopuService")
public class PhopuRestfulService {
Logger logger = Logger.getLogger(PhopuRestfulServiceImpl.class);
@GET
@Produces(MediaType.APPLICATION_JSON) //指定返回数据的类型 json字符串
//@Consumes(MediaType.TEXT_PLAIN) //指定请求数据的类型 文本字符串
@Path("/getUser/{userId}")
public User getUser(@PathParam("userId")String userId) {
this.logger.info("Call getUser() method...."+userId);
User user = new User();
user.setUserName("中文");
user.setAge(26);
user.setSex("m");
return user;
}
@POST
@Produces(MediaType.APPLICATION_JSON) //指定返回数据的类型 json字符串
//@Consumes(MediaType.TEXT_PLAIN) //指定请求数据的类型 文本字符串
@Path("/getUserPost")
public User getUserPost(String userId) {
this.logger.info("Call getUserPost() method...."+userId);
User user = new User();
user.setUserName("中文");
user.setAge(26);
user.setSex("m");
return user;
}
}

web.xml配置，跟soap协议的接口一样

<!-- CXF webservice 配置 -->
<servlet>
<servlet-name>cxf-phopu</servlet-name>
<servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>cxf-phopu</servlet-name>
<url-pattern>/services/*</url-pattern>
</servlet-mapping>

Spring整合配置

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:jaxws="http://cxf.apache.org/jaxws"
xmlns:jaxrs="http://cxf.apache.org/jaxrs"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://cxf.apache.org/jaxws http://cxf.apache.org/schemas/jaxws.xsd
http://cxf.apache.org/jaxrs http://cxf.apache.org/schemas/jaxrs.xsd">
<import resource="classpath:/META-INF/cxf/cxf.xml" />
<import resource="classpath:/META-INF/cxf/cxf-servlet.xml" />
<import resource="classpath:/META-INF/cxf/cxf-extension-soap.xml" />
<!-- 配置restful json 解析器 , 用CXF自带的JSONProvider需要注意以下几点
-1、dropRootElement 默认为false，则Json格式会将类名作为第一个节点，如{Customer:{"id":123,"name":"John"}}，如果配置为true，则Json格式为{"id":123,"name":"John"}。
-2、dropCollectionWrapperElement属性默认为false，则当遇到Collection时，Json会在集合中将容器中类名作为一个节点，比如{"Customer":{{"id":123,"name":"John"}}}，而设置为false，则JSon格式为{{"id":123,"name":"John"}}
-3、serializeAsArray属性默认为false，则当遇到Collecion时，格式为{{"id":123,"name":"John"}}，如果设置为true，则格式为[{"id":123,"name":"john"}]，而Gson等解析为后者
<bean id="jsonProviders" class="org.apache.cxf.jaxrs.provider.json.JSONProvider">
<property name="dropRootElement" value="true" />
<property name="dropCollectionWrapperElement" value="true" />
<property name="serializeAsArray" value="true" />
</bean>
-->
<!-- 服务类 -->
<bean id="phopuService" class="com.phopu.service.PhopuRestfulService" />
<jaxrs:server id="service" address="/">
<jaxrs:inInterceptors>
<bean class="org.apache.cxf.interceptor.LoggingInInterceptor" />
</jaxrs:inInterceptors>
<!--serviceBeans：暴露的WebService服务类-->
<jaxrs:serviceBeans>
<ref bean="phopuService" />
</jaxrs:serviceBeans>
<!--支持的协议-->
<jaxrs:extensionMappings>
<entry key="json" value="application/json"/>
<entry key="xml" value="application/xml" />
<entry key="text" value="text/plain" />
</jaxrs:extensionMappings>
<!--对象转换-->
<jaxrs:providers>
<!-- <ref bean="jsonProviders" /> 这个地方直接用CXF的对象转换器会存在问题，当接口发布，第一次访问没问题，但是在访问服务就会报错，等后续在研究下 -->
<bean class="org.codehaus.jackson.jaxrs.JacksonJaxbJsonProvider" />
</jaxrs:providers>
</jaxrs:server>
</beans>

客户端调用示例：

对于get方式的服务，直接在浏览器中输入http://localhost:8080/phopu/services/phopuService/getUser/101010500 就可以直接看到返回的json字符串

{"userName":"中文","sex":"m","age":26} 

客户端调用代码如下：

public static void getWeatherPostTest() throws Exception{
String url = "http://localhost:8080/phopu/services/phopuService/getUserPost";
HttpClient httpClient = HttpClients.createSystem();
//HttpGet httpGet = new HttpGet(url); //接口get请求，post not allowed
HttpPost httpPost = new HttpPost(url);
httpPost.addHeader(CONTENT_TYPE_NAME, "text/plain");
StringEntity se = new StringEntity("101010500");
se.setContentType("text/plain");
httpPost.setEntity(se);
HttpResponse response = httpClient.execute(httpPost);
int status = response.getStatusLine().getStatusCode();
log.info("[接口返回状态吗] : " + status);
String weatherInfo = ClientUtil.getReturnStr(response);
log.info("[接口返回信息] : " + weatherInfo);
}

客户端调用返回信息如下：

ClientUtil类是我自己封装的一个读取response返回信息的类，encoding是UTF-8

public static String getReturnStr(HttpResponse response) throws Exception {
String result = null;
BufferedInputStream buffer = new BufferedInputStream(response.getEntity().getContent());
byte[] bytes = new byte[1024];
int line = 0;
StringBuilder builder = new StringBuilder();
while ((line = buffer.read(bytes)) != -1) {
builder.append(new String(bytes, 0, line, HTTP_SERVER_ENCODING));
}
result = builder.toString();
return result;
}

到这里，就介绍完了，大家手动去操作一下吧，有问题大家一块交流。

以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持脚本之家。

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