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。
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<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。
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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。
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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。
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<!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服务器之家。
