jersey也提供MVC的方式來支援JSP來做template(View)
讓畫ui結構更直覺多了。
步驟一：設定 web.xml config檔，需先前的設定方法不太一樣，這次是指定filter。
經過測試如果沒改filter的用法，會map不到對應的樣版XD
<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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"> <filter> <filter-name>jersey</filter-name> <filter-class>com.sun.jersey.spi.container.servlet.ServletContainer</filter-class> <init-param> <param-name>com.sun.jersey.config.property.packages</param-name> <param-value>sample</param-value> </init-param> <init-param> <param-name>com.sun.jersey.config.property.JSPTemplatesBasePath</param-name> <param-value>/WEB-INF/views</param-value> </init-param> <init-param> <param-name>com.sun.jersey.config.property.WebPageContentRegex</param-name> <param-value>/(resources|(WEB-INF/views))/.*</param-value> </init-param> </filter> <filter-mapping> <filter-name>jersey</filter-name> <url-pattern>/*</url-pattern> </filter-mapping> </web-app>
步驟二：建立controller，可以定義回傳物件為Viewable或Response
package com.ezakus.web;
import javax.ejb.Stateless;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import com.sun.jersey.api.view.Viewable;
@Stateless
@Path("/")
public class MyController {
@GET
@Produces("text/html")
public Viewable index() {
return new Viewable("/index");
}
}
package com.ezakus.web;
import javax.ejb.Stateless;
import javax.ws.rs.GET;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.Response;
import com.sun.jersey.api.view.Viewable;
@Stateless
@Path("/")
public class MyController {
@GET
@Produces("text/html")
public Response index() {
return Response.ok(new Viewable("/index")).build();
}
}
步驟三：建立View的樣版
TIP:新建index.jsp樣版檔，需要放在WEB-INF/views裡面。
jersey會在樣版對應一個it的變數，透過it所存的內容就可以利用JSTL來畫出來
<%@page contentType="text/html"%>
<%@page pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<title>Welcome!</title>
</head>
<body>
<h1>Welcome ${it.user}!</h1>
<p>
items in your cart :<br />
<c:forEach var="item" items="${it.items}">
${item}<br />
</c:forEach>
</p>
</body>
</html>
Reference:
https://blogs.oracle.com/sandoz/entry/mvcj
Using Jsp in a Jersey JAX-RS RESTful application
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