jersey+maven构建restful服务

一、新建一个Maven Web项目

a) 新建一个简单的Maven项目

b) 将简单的Maven项目转成Web项目

 

（若没出现further configuration available……或里面的内容不是context相关设置，将Dynamic Web Module版本调高一些试试就自动出现了）

二、修改pom文件，添加jersey依赖

<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/xsd/maven-4.0.0.xsd">

  <modelVersion>4.0.0</modelVersion>

  <groupId>com.zql</groupId>

  <artifactId>jersey-restful</artifactId>

  <version>0.0.1-SNAPSHOT</version>

  <packaging>war</packaging>

  <name>jersey-restful</name>

  <description>Jersey构建restful服务入门</description>

  <dependencies>

		<dependency>

			<groupId>org.glassfish.jersey.containers</groupId>

			<artifactId>jersey-container-servlet</artifactId>

			<version>2.17</version>

		</dependency>

		<dependency>

			<groupId>org.glassfish.jersey.core</groupId>

			<artifactId>jersey-client</artifactId>

			<version>2.17</version>

		</dependency>

  </dependencies>

</project>

 

三、修改web.xml文件

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

<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" 

		xmlns="http://java.sun.com/xml/ns/javaee" 

		xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" 

		id="WebApp_ID" 

		version="3.0">

	<display-name>jersey-restful</display-name>

	  <servlet>  

	      <servlet-name>jersey-restful</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.zql</param-value>  

	      </init-param>  

	      <load-on-startup>1</load-on-startup>  

	  </servlet>  

	  <servlet-mapping>  

	      <servlet-name>jersey-restful</servlet-name>  

	      <url-pattern>/rest/*</url-pattern>  

	  </servlet-mapping>

</web-app>

四、构建RestFul服务

package com.zql.model;

public class User {

	public int age;

	public String name;

	public String getName() {

		return name;

	}

	public void setName(String name) {

		this.name = name;

	}

	public int getAge() {

		return age;

	}

	public void setAge(int age) {

		this.age = age;

	}

}

package com.zql.controller;

import javax.ws.rs.GET;

import javax.ws.rs.Path;

import javax.ws.rs.PathParam;

import javax.ws.rs.Produces;

import javax.ws.rs.QueryParam;

import javax.ws.rs.core.MediaType;

import com.zql.model.User;

@Path("/restful")

public class RestfulTest {

	@GET

	@Produces(MediaType.TEXT_PLAIN)

	public String sayHello() {

		return "hello world!";

	}

	@GET

	@Path("/{param}")

	@Produces("text/plain;charset=UTF-8")

	public String sayHello2UserByText(@PathParam("param") String username) {

		return "Hello " + username;

	}

	@GET

	@Path("/get")

	@Produces(MediaType.APPLICATION_JSON)

	public User sayHelloToUserByJson(@QueryParam("username") String username) {

		User user = new User();

		user.setAge(11);

		user.setName(username);

		return user;

	}

}

发布服务:

 

测试服务:

http://localhost:8080/jersey-restful/rest/restful

http://localhost:8080/jersey-restful/rest/restful/zql

http://localhost:8080/jersey-restful/rest/restful/get?username=zql

类似下面图解。

jersey-restful为web.xml文件中<display-name>节点值；

rest为web.xml文件中<url-pattern>节点值；

restful为服务类@Path定义的名称；

zql为服务类方法的@Path定义的方法名；

 

测试结果:

hello world!

Hello zql

{

    "age": 11,

    "name": "zql"

}

 

参考：

https://blog.youkuaiyun.com/mole/article/details/50214971

https://blog.youkuaiyun.com/liuchuanhong1/article/details/52880598

转载于:https://www.cnblogs.com/zhangwuji/p/9368339.html