Jersey实现Restful服务(实例讲解)
发布于 2017-12-07 08:55:34 | 201 次阅读 | 评论: 0 | 来源: 网友投递
Jersey RESTful的Web服务框架
Jersey是JAX-RS（JSR311）开源参考实现用于构建RESTful Web service。此外Jersey还提供一些额外的API和扩展机制，所以开发人员能够按照自己的需要对Jersey进行扩展。
下面小编就为大家带来一篇Jersey实现Restful服务(实例讲解)。小编觉得挺不错的，现在就分享给大家，也给大家做个参考。一起跟随小编过来看看吧
jersey 是基于Java的一个轻量级RESTful风格的Web Services框架。以下我基于IDEA实现Restful完整Demo。
1.创建maven-web工程，后面就是正常的maven工程创建流程。
2.添加Jersey框架的maven文件。
<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/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.restful</groupId>
<artifactId>jerseyDemo</artifactId>
<packaging>war</packaging>
<version>1.0-SNAPSHOT</version>
<name>jerseyDemo Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.containers</groupId>
<artifactId>jersey-container-servlet</artifactId>
<version>2.9</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.core</groupId>
<artifactId>jersey-client</artifactId>
<version>2.9</version>
</dependency>
<dependency>
<groupId>org.glassfish.jersey.media</groupId>
<artifactId>jersey-media-json-jackson</artifactId>
<version>2.9</version>
</dependency>
<dependency>
<groupId>com.sun.jersey</groupId>
<artifactId>jersey-client</artifactId>
<version>1.19.3</version>
</dependency>
</dependencies>
<build>
<finalName>jerseyDemo</finalName>
</build>
</project>3.Restful接口定义。
package com.restful.service;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.restful.entity.PersonEntity;
import javax.ws.rs.*;
import javax.ws.rs.core.MediaType;
import java.io.IOException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
* Created by XuHui on 2017/8/2.
*/
@Path("/JerseyService")
public class JerseyService {
private static Map<String, PersonEntity> map = new HashMap<String, PersonEntity>();
@GET
@Path("/getAllResource")
@Produces(MediaType.APPLICATION_JSON)
public String getAllResource() throws JsonProcessingException {
List<PersonEntity> list = new ArrayList<PersonEntity>();
for (PersonEntity entity : map.values()) {
list.add(entity);
}
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(list);
}
@GET
@Path("/getResourceById/{id}")
@Produces(MediaType.APPLICATION_JSON)
public String getResource(@PathParam("id") String id) throws JsonProcessingException {
ObjectMapper mapper = new ObjectMapper();
return mapper.writeValueAsString(map.get(id));
}
@POST
@Path("/addResource/{person}")
@Consumes({MediaType.APPLICATION_XML, MediaType.APPLICATION_JSON})
@Produces(MediaType.APPLICATION_JSON)
public String addResource(String person) throws IOException {
ObjectMapper mapper = new ObjectMapper();
PersonEntity entity = mapper.readValue(person, PersonEntity.class);
map.put(entity.getId(), entity);
return mapper.writeValueAsString(entity);
}
@GET
@Path("/getRandomResource")
@Produces(MediaType.APPLICATION_JSON)
public String getRandomResource() throws JsonProcessingException {
ObjectMapper mapper = new ObjectMapper();
PersonEntity entity = new PersonEntity("NO1", "Joker", "http:///");
return mapper.writeValueAsString(entity);
}
}PersonEntity实体类实现。
package com.restful.entity;
/**
* Created by XuHui on 2017/8/2.
*/
public class PersonEntity {
private String id;
private String name;
private String addr;
public PersonEntity() {
}
public PersonEntity(String id, String name, String addr) {
this.id = id;
this.name = name;
this.addr = addr;
}
public String getId() {
return id;
}
public void setId(String id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddr() {
return addr;
}
public void setAddr(String addr) {
this.addr = addr;
}
@Override
public String toString() {
return "PersonEntity{" +
"id='" + id + '\'' +
", name='" + name + '\'' +
", addr='" + addr + '\'' +
'}';
}
}4.web.xml配置。
<!DOCTYPE web-app PUBLIC
"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
"http://java.sun.com/dtd/web-app_2_3.dtd" >
<web-app>
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>Jersey RESTful Application</servlet-name>
<servlet-class>org.glassfish.jersey.servlet.ServletContainer</servlet-class>
<init-param>
<param-name>jersey.config.server.provider.packages</param-name>
<param-value>com.restful</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>Jersey RESTful Application</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping>
</web-app>5.搭建本地tomcat
6.运行结果、http://localhost:8080/jerseyDemo/rest/application.wadl是所有对外接口的调用方法。使用postman来看看这个接口是怎么调用的吧。
POST请求
GET请求
以上这篇Jersey实现Restful服务(实例讲解)就是小编分享给大家的全部内容了，希望能给大家一个参考，也希望大家多多支持PHPERZ。
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