前面文章记录了在spring中如何整合cxf开发webservice客户端和服务端，其实，相较于原生开发方式，已经有了不少优化。rest风格的开发，作为一种极为流行的开发规范，可以帮助我们更加简洁高效的发布服务，接收服务。
客户端
添加依赖
之前的都是jaxws，现在都将w编程了r，也就是rest的意思。
<dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-frontend-jaxrs</artifactId><version>3.3.5</version></dependency><dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-transports-http</artifactId><version>3.3.5</version><scope>compile</scope></dependency><!-- /artifact/org.apache.cxf/cxf-rt-rs-client --><dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-rs-client</artifactId><version>3.3.5</version></dependency><!-- /artifact/org.apache.cxf/cxf-rt-rs-extension-providers --><dependency><groupId>org.apache.cxf</groupId><artifactId>cxf-rt-rs-extension-providers</artifactId><version>3.3.5</version></dependency><!-- /artifact/org.codehaus.jettison/jettison --><dependency><groupId>org.codehaus.jettison</groupId><artifactId>jettison</artifactId><version>1.4.0</version></dependency>
配置web.xml
和之前的没有更多的变动
<web-app><display-name>Archetype Created Web Application</display-name><servlet><servlet-name>cXFServlet</servlet-name><servlet-class>org.apache.cxf.transport.servlet.CXFServlet</servlet-class></servlet><servlet-mapping><servlet-name>cXFServlet</servlet-name><url-pattern>/webService/*</url-pattern></servlet-mapping><!-- 2.配置spring容器--><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:applicationContext.xml</param-value><!-- 3.监听器--></context-param><listener><listener-class>org.springframework.web.context.ContextLoaderListener</listener-class></listener>
编写实体类
@XmlRootElement注解指定了对象序列化为json/xml过后的根节点。
@XmlRootElement(name="student")public class Student {private Integer id;private String name;private String gender;private Integer age;public Integer getId() {return id;}public void setId(Integer id) {this.id = id;}public String getName() {return name;}public void setName(String name) {this.name = name;}public String getGender() {return gender;}public void setGender(String gender) {this.gender = gender;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}@Overridepublic String toString() {return "Student{" +"id=" + id +", name='" + name + '\'' +", gender='" + gender + '\'' +", age=" + age +'}';}}
service接口和实现类
IStudnetService 接口，其中： @Path表示访问当前服务接口对应的路径； @Consumes指定服务器支持的接收的数据类型； @Produces指定服务器支持的返回的数据类型
public interface IStudnetService {/*** post对应的是insert操作* get对应的是select操作* put对应的是update操作* delete对应的是delete操作** @param student*/@POST@Path("/student")@Consumes({"application/xml","application/json"})public void addStudent(Student student);@PUT@Path("/student")@Consumes({"application/xml","application/json"})public void saveStudent(Student student);@GET@Path("/student/{id}")@Consumes({"application/xml","application/json"})@Produces({"application/xml","application/json"})public Student getStudentById(@PathParam("id") Integer id);@GET@Path("/student")@Produces({"application/xml","application/json"})public List<Student> getStudent();@DELETE@Path("/student/{id}")@Consumes({"application/xml","application/json"})public void deleteStudent(@PathParam("id") Integer id);}
StudentService 实现类
这里模拟rest风格的增删改查，当客户端调用服务时，服务端打印日志记录。
public class StudentService implements IStudnetService {@Overridepublic void addStudent(Student student) {System.out.println(student.getName()+"学生信息添加成功！");}@Overridepublic void saveStudent(Student student) {System.out.println(student.getName()+"学生信息修改成功！");}@Overridepublic Student getStudentById(Integer id) {Student student = new Student();student.setId(id);student.setAge(13);student.setGender("男");student.setName("william");System.out.println("id为"+id+"学生信息查询成功！");return student;}@Overridepublic List<Student> getStudent() {Student student1 = new Student();student1.setId(1);student1.setAge(13);student1.setGender("男");student1.setName("william");Student student2 = new Student();student2.setId(2);student2.setAge(12);student2.setGender("女");student2.setName("elaine");List<Student> studentList = new ArrayList<Student>();studentList.add(student1);studentList.add(student2);System.out.println("成功查询所有学生信息成功!");return studentList;}@Overridepublic void deleteStudent(Integer id) {System.out.println("id为"+id+"的学生信息删除成功！");}}
配置applicationContext.xml
配置服务的方式基本没有什么变化，需要注意一下jaxrs标签以及对应的命名空间。
<?xml version="1.0" encoding="UTF-8"?><beans xmlns="/schema/beans"xmlns:xsi="/2001/XMLSchema-instance"xmlns:context="/schema/context"xmlns:jaxws="/jaxws" xmlns:cxf="/jaxws"xmlns:jaxrs="/jaxrs"xsi:schemaLocation="/schema/beans/schema/beans/spring-beans-3.0.xsd/schema/context/schema/context/spring-context-3.0.xsd/jaxws/schemas/jaxws.xsd/jaxrs /schemas/jaxrs.xsd "><jaxrs:server address="/studentService"><jaxrs:serviceBeans><bean class="com.wuwl.service.impl.StudentService"></bean></jaxrs:serviceBeans></jaxrs:server></beans>
启动tomcat服务
启动成功后，我们通过浏览器访问：http://localhost:8081/webService/studentService/student/123，会在页面上显示：
<?xml version="1.0" encoding="UTF-8" standalone="true"?><student><age>13</age><gender>男</gender><id>123</id><name>william</name></student>
客户端
客户端的编写则更加简洁明了了。
7. 引入相关的依赖
8. 导入实体类
这里需要导入Student这个实体类。
9. 编写测试代码Client
通过webClient对象调用服务，发送不同的请求类型，自动匹配对应的服务方法
public class Client {@Testpublic void testPost(){Student st1 = new Student();st1.setId(10);st1.setName("jack");st1.setGender("男");st1.setAge(15);//通过webClient对象远程调用服务WebClient.create("http://localhost:8081/webService/studentService/student").type(MediaType.APPLICATION_JSON).post(st1);}@Testpublic void testDelete(){WebClient.create("http://localhost:8081/webService/studentService/student/12").type(MediaType.APPLICATION_JSON).delete();}@Testpublic void testPut(){Student st1 = new Student();st1.setId(10);st1.setName("marry");st1.setGender("/女");st1.setAge(15);//通过webClient对象远程调用服务WebClient.create("http://localhost:8081/webService/studentService/student").type(MediaType.APPLICATION_JSON).put(st1);}@Testpublic void testGetById(){Student student = WebClient.create("http://localhost:8081/webService/studentService/student/12").accept(MediaType.APPLICATION_JSON).get(Student.class);System.out.println(student);}@Testpublic void testGet(){List<Student> studentList = (List<Student>) WebClient.create("http://localhost:8081/webService/studentService/student").accept(MediaType.APPLICATION_JSON).getCollection(Student.class);System.out.println(studentList);}}
我们自上而下依次执行单元测试方法，由于除了GET请求以外，都没有返回值，客户端看不到任何输出，而服务端可以查看对应请求记录。
jack学生信息添加成功！id为12的学生信息删除成功！marry学生信息修改成功！
接着，我们测试testGetById方法。
客户端输出：
Student{id=12, name='william', gender='男', age=13}
服务端输出：
id为12学生信息查询成功！
最后，测试testGet方法。
客户端输出：
[Student{id=1, name='william', gender='男', age=13}, Student{id=2, name='elaine', gender='女', age=12}]
服务端输出：
成功查询所有学生信息成功!
