1. eclipse 创建 dynamic web project
2. 将jersey相关jar包放到libs目录下
3. web.xml 增加 jersey 相关内容
<?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_2_5.xsd" id="WebApp_ID" version="2.5">
<display-name>restDemo</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list> <servlet>
<servlet-name>Jersey REST Service</servlet-name>
<servlet-class>
com.sun.jersey.spi.container.servlet.ServletContainer
</servlet-class>
<init-param>
<param-name>com.sun.jersey.config.property.packages</param-name>
<param-value>com.huawei.rest.resources</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>Jersey REST Service</servlet-name>
<url-pattern>/rest/*</url-pattern>
</servlet-mapping> </web-app>
4. 创建 resource 类
package com.huawei.rest.resources; import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.PathParam;
import javax.ws.rs.core.MediaType; @Path("/hello")
public class HelloResource {
@GET
@Produces(MediaType.TEXT_PLAIN)
public String sayHello() {
return "hello jersey , first demo" ;
} @GET
@Path("/{param}")
@Produces("text/plain;charset=UTF-8")
public String sayHelloToUTF8(@PathParam("param") String username) {
return "Hello " + username;
} @GET
@Path("/getuser")
@Produces(MediaType.APPLICATION_JSON)
public User getUserJson() {
User user = new User();
user.setAge(27);
user.setUserid("005");
user.setUsername("Fmand");
return user;
} }
5. 创建 user 类
package com.huawei.rest.resources; import javax.xml.bind.annotation.XmlRootElement; @XmlRootElement
public class User {
int age;
String userid;
String username;
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
public String getUserid() {
return userid;
}
public void setUserid(String userid) {
this.userid = userid;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
}
6. 运行一下看看效果
