关于RestFul编程可以参考：https://www.cnblogs.com/wang-yaz/p/9237981.html

关于jaxrs的实现需要有restful的理解。

话不多说直接上代码！！

1、服务端的开发

1、新建web项目、工程目录如下图

2、pom文件添加依赖

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.</modelVersion>

  <groupId>com.cr</groupId>

  <artifactId>server</artifactId>

  <version>1.0-SNAPSHOT</version>

  <name>server</name>

  <!-- FIXME change it to the project's website -->

  <url>http://www.example.com</url>

  <properties>

    <project.build.sourceEncoding>UTF-</project.build.sourceEncoding>

    <maven.compiler.source>1.7</maven.compiler.source>

    <maven.compiler.target>1.7</maven.compiler.target>

  </properties>

  <dependencies>

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-frontend-jaxrs</artifactId>

      <version>3.0.</version>

    </dependency>

    <!-- 内置jetty服务器 -->

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-transports-http-jetty</artifactId>

      <version>3.0.</version>

    </dependency>

    <!--日志-->

    <dependency>

      <groupId>org.slf4j</groupId>

      <artifactId>slf4j-log4j12</artifactId>

      <version>1.7.</version>

      <scope>test</scope>

    </dependency>

    <!--restful风格客户端调用所需要的 -->

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-rs-client</artifactId>

      <version>3.0.</version>

    </dependency>

    <!--对json的支持 -->

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-rs-extension-providers</artifactId>

      <version>3.0.</version>

    </dependency>

    <dependency>

      <groupId>org.codehaus.jettison</groupId>

      <artifactId>jettison</artifactId>

      <version>1.3.</version>

    </dependency>

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>4.11</version>

      <scope>test</scope>

    </dependency>

  </dependencies>

  <build>

    <plugins>

    <plugin>

      <groupId>org.apache.maven.plugins</groupId>

      <artifactId>maven-compiler-plugin</artifactId>

      <version>3.2</version>

      <configuration>

        <source>1.8</source>

        <target>1.8</target>

        <encoding>UTF-</encoding>

        <showWarnings>true</showWarnings>

      </configuration>

    </plugin>

    </plugins>

  </build>

</project>

3、类：

User.java
注意需要和client端在同一个包里
package com.cr.entity;

import javax.xml.bind.annotation.XmlRootElement;

//基于restful风格的webservice

//客户端与服务的之间通讯可以传到xml、json

//该注解指定对象序列化为xml或者json数据时根节点的名称

//xml：  <User><id></id></User>

//json:效率更高   {"User":"",pwd:""}



@XmlRootElement(name = "User")

public class User {

    private  String name;

    private  String  pwd;

    //.....

}
接口
UserService.java
package com.cr.service;

import com.cr.entity.User;

import javax.ws.rs.*;

import java.util.List;

//访问当前服务接口对应的路径

@Path("/userService")

@Produces("*/*")//支持任意类型

public interface UserService {

    @POST

    @Path("/user")//访问当前端方法对应的路径

    @Consumes({"application/xml","application/json"})//服务器支持的请求数据格式类型

    public void save(User user);

    @GET

    @Path("/user")

    @Consumes({"application/xml","application/json"})

    @Produces("application/xml")

    public List<User> findUser();

}
接口的实现
UserServiceImpl.java
package com.cr.service.impl;

import com.cr.entity.User;

import com.cr.service.UserService;

import java.util.ArrayList;

import java.util.List;

public class UserServiceImpl implements UserService {

    public void save(User user){

        System.out.println("save:"+user);

    }

    public List<User> findUser(){

        List<User> uList = new ArrayList<>();

        User u1 = new User("aa","qwe");

        User u2 = new User("bb","asd");

        uList.add(u1);

        uList.add(u2);

        System.out.println(uList);

        return uList;

    }

}

发布服务

package com.cr;

import com.cr.service.impl.UserServiceImpl;

import org.apache.cxf.interceptor.LoggingInInterceptor;

import org.apache.cxf.interceptor.LoggingOutInterceptor;

import org.apache.cxf.jaxrs.JAXRSServerFactoryBean;

public class server {

    public static void main(String[] args) {

        //发布服务的工程

        JAXRSServerFactoryBean factoryBean = new JAXRSServerFactoryBean();

        //设置服务的 地址

        factoryBean.setAddress("http://localhost:8001/cr/");

        //设置服务类

        factoryBean.setServiceBean(new UserServiceImpl());

        //添加日志输入

        factoryBean.getInInterceptors().add(new LoggingInInterceptor());

        factoryBean.getOutInterceptors().add(new LoggingOutInterceptor());

        //发布服务

        factoryBean.create();

        System.out.println("发布成功...");

    }

}

2、客户端的代码

1、工程结构

2、pom文件

<?xml version="1.0" encoding="UTF-8"?>

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"

  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0http://maven.apache.org/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.</modelVersion>

  <groupId>com.cr</groupId>

  <artifactId>client</artifactId>

  <version>1.0-SNAPSHOT</version>

  <name>client</name>

  <!-- FIXME change it to the project's website -->

  <url>http://www.example.com</url>

  <properties>

    <project.build.sourceEncoding>UTF-</project.build.sourceEncoding>

    <maven.compiler.source>1.7</maven.compiler.source>

    <maven.compiler.target>1.7</maven.compiler.target>

  </properties>

  <dependencies>

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-frontend-jaxrs</artifactId>

      <version>3.0.</version>

    </dependency>

    <!-- 内置jetty服务器 -->

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-transports-http-jetty</artifactId>

      <version>3.0.</version>

    </dependency>

    <!--日志-->

    <dependency>

      <groupId>org.slf4j</groupId>

      <artifactId>slf4j-log4j12</artifactId>

      <version>1.7.</version>

      <scope>test</scope>

    </dependency>

    <!--restful风格客户端调用所需要的 -->

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-rs-client</artifactId>

      <version>3.0.</version>

    </dependency>

    <!--对json的支持 -->

    <dependency>

      <groupId>org.apache.cxf</groupId>

      <artifactId>cxf-rt-rs-extension-providers</artifactId>

      <version>3.0.</version>

    </dependency>

    <dependency>

      <groupId>org.codehaus.jettison</groupId>

      <artifactId>jettison</artifactId>

      <version>1.3.</version>

    </dependency>

    <dependency>

      <groupId>junit</groupId>

      <artifactId>junit</artifactId>

      <version>4.11</version>

      <scope>test</scope>

    </dependency>

  </dependencies>

  <build>

    <plugins>

      <plugin>

        <groupId>org.apache.maven.plugins</groupId>

        <artifactId>maven-compiler-plugin</artifactId>

        <version>3.2</version>

        <configuration>

          <source>1.8</source>

          <target>1.8</target>

          <encoding>UTF-</encoding>

          <showWarnings>true</showWarnings>

        </configuration>

      </plugin>

    </plugins>

  </build>

</project>

3、类

User.java

package com.cr.entity;

import javax.xml.bind.annotation.XmlRootElement;

//基于restful风格的webservice

//客户端与服务的之间通讯可以传到xml、json

//该注解指定对象序列化为xml或者json数据时根节点的名称

//xml：  <User><id></id></User>

//json:效率更高   {"User":"",pwd:""}

@XmlRootElement(name = "User")

public class User {

    private  String name;

    private  String  pwd;

        //....

}

测试：

@Test

public void save(){

    //远程调用服务端

    WebClient.

            create("http://localhost:8001/cr/userService/user").

            type("application/json").

            post(new User("qq","22"));

}

server端的打印　

----------------------------

ID:

Address: http://localhost:8001/cr/userService/user

Encoding: ISO--

Http-Method: POST

Content-Type: application/json

Headers: {Accept=[*/*], Cache-Control=[no-cache], connection=[keep-alive], Content-Length=[31], content-type=[application/json], Host=[localhost:8001], Pragma=[no-cache], User-Agent=[Apache CXF 3.0.1]}

Payload: {"User":{"name":"qq","pwd":22}}

--------------------------------------

save:com.cr.entity.User@4986f0c7

INFO  - LoggingOutInterceptor      - Outbound Message

---------------------------

ID: 4

Response-Code: 204

Content-Type:

Headers: {Date=[Mon, 18 Mar 2019 11:56:29 GMT], Content-Length=[0]}

--------------------------------------

测试：

//查询

@Test

public void find(){

   WebClient.create("http://localhost:8001/cr/userService/user").get();

}
ID:

Address: http://localhost:8001/cr/userService/user

Http-Method: GET

Content-Type: */*

Headers: {Accept=[*/*], Cache-Control=[no-cache], connection=[keep-alive], content-type=[*/*], Host=[localhost:8001], Pragma=[no-cache], User-Agent=[Apache CXF 3.0.1]}

--------------------------------------

[com.cr.entity.User@7f4f702, com.cr.entity.User@3cb7324]

INFO  - LoggingOutInterceptor      - Outbound Message

---------------------------

ID: 5

Response-Code: 200

Content-Type: application/xml

Headers: {Content-Type=[application/xml], Date=[Mon, 18 Mar 2019 11:57:38 GMT]}

Payload: <?xml version="1.0" encoding="UTF-8"?><Users><User><name>aa</name><pwd>qwe</pwd></User><User><name>bb</name><pwd>asd</pwd></User></Users>

3、额外的补充

额外的补充都可以尝试去实现！！！

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