前提是已经把play导入到eclipse里面去了,没有请看这:http://blog.csdn.net/u013372441/article/details/47100129
然后在工程的目录下建立这么几个文件如下图所示
直接代码
Application.java
<span style="font-size:18px;">package controllers;
import play.*;
import play.mvc.*;
import java.util.*;
import models.*;
public class Application extends Controller {
public static void index() {
render();
}
public static void login(){
render();
}
public static void dologin(String user,String password){
User user1 =User.find("user=? and password=?", user,password).first();
if(user1 !=null)
{
System.out.println("success!");
System.out.println(user1.user+user1.password);
String hello =user1.user;
System.out.println(hello);
success(hello);
//在这里打印find的返回值
index();
//跳转到原来的index.html网页
}
else{
System.out.println("wrong!");
login();
//继续停留在登陆网页
}
}
public static void register(){
render();
}
// 实现注册
public static void doregister(String user,String password){
User user2= new User();
user2.user=user;
user2.password=password;
user2.save();
else{
register();
}
}
public static void success(String name){
render(name);
}
}
</span>下面是user.java
<span style="font-size:18px;">package models;
import javax.persistence.Entity;
import play.db.jpa.Model;
@Entity
public class User extends Model{
public String user;
public String password;
}
</span>然后是几个html网页
index.html
<span style="font-size:18px;"><!DOCTYPE html >
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style>
a{
text-decoration:none;
}
</style>
</head>
<body> <!-- /application/dologin-->
<br />
<h1>hello 欢迎来到java play的世界</h1>
<a href="@{Application.login}" style="font-size:25px">login</a> <br/>
<a href="@{Application.register}"style="font-size:25px">register</a>
</body>
</html>
</span>login.html
<span style="font-size:18px;"><!DOCTYPE html >
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
<style>
body{
background-color: rgb(11,41,105);
}
</style>
</head>
<body> <!-- /application/dologin-->
<br />
<form method="post" action="@{application.dologin()}">
<span style="color:white">用户: <input type="text" name="user"></span><br />
<br />
<!-- user: <input type="text" name="user"> <br> -->
<span style="color:white">密码: <input type="password" name="password"></span>
<!-- password:<input type="password" name="password"><br> -->
<br />
<span style="padding-left:80px">
<input type="submit" value="登录"> <input type="reset" value="重置">
</span>
</form>
</body>
</html></span>register.html
<span style="font-size:18px;"><!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Insert title here</title>
</head>
<body>
<form method="post" action="@{application.doregister()}">
user:<input type="text" name="user">
<br>
password:<input type="password" name="password">
<br>
<input type="submit" value="注册 "> <input type="reset" value="重置">
</body>
</html>
</span>success.html
<span style="font-size:18px;"><!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>
#content{
color: #FFFFFF;
height:500px;
width: 500px;
clear: right;
position:absolute;
top: 300px;
left: 500px;
}
</style>
</head>
<body>
<div id="content">
<span style="color:rgb(218,112,214);font-size:15px">登录名:${name}</span>
<br/>
<span style="color:rgb(189,183,107);font-size:15px">登陆成功正在跳转..............</span>
</div>
</body>
</html></span>接下来是routes的配置
<span style="font-size:18px;"># Routes
# This file defines all application routes (Higher priority routes first)
# ~~~~
# Home page
GET / Application.index
GET /login Application.login
GET /register Application.register
GET /success Application.success
# Ignore favicon requests
GET /favicon.ico 404
# Map static resources from the /app/public folder to the /public path
GET /public/ staticDir:public
# Catch all
* /{controller}/{action} {controller}.{action}
</span>然后是数据库的配置
在 application.conf里面找到如下的界面
在这里我选择的是mysql数据库然后我用的用户名是root,密码是123456,localhost是本机地址不用不用改,one是我自己的数据库名字,把它换成你自己的
然后在cmd下运行 play run first
在浏览器里输入127.0.0.1:9000就会看到网页了
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原文地址：http://blog.csdn.net/u013372441/article/details/47100843
