Eclipse+Spring+gradle

其他 2019-05-09 03:34:42 阅读次数: 0

eclipse常用快捷键

  • ctrl+shfit+s:get、set方法
  • shift+Alt+L：快捷生成变量

spring boot创建工具：https://start.spring.io/

修改下载依赖

repositories {
    maven{
       url 'http://maven.aliyun.com/nexus/content/groups/public/'
      
     }
}

Eclipse下载插件：

buildship、spring-tool-site

配置项目编码为UTF-8

项目配置

#服务器端口号
server.port=8080

#配置JSP视图的位置和后缀
spring.mvc.view.prefix=/WEB-INF/jsp/
spring.mvc.view.suffix=.jsp

#数据源配置
spring.datasource.url=jdbc:mysql://localhost:3308/registerdemo?useUnicode=true&characeterEncoding=utf-8&serverTimezone=UTC&useSSL=false&allowPublicKeyRetrieval=true
spring.datasource.username=root
spring.datasource.password=root
spring.datasource.driver-class-name=com.mysql.jdbc.Driver

#Hibernate配置
spring.jpa.hibernate.ddl-auto=update
spring.jpa.database-platform=org.hibernate.dialect.MySQL5InnoDBDialect

配置依赖

plugins {
    id 'org.springframework.boot' version '2.1.4.RELEASE'
    id 'java'
}

apply plugin: 'io.spring.dependency-management'

group = 'com.lys'
version = '0.0.1-SNAPSHOT'
sourceCompatibility = '1.8'

repositories {
    maven{
       url 'http://maven.aliyun.com/nexus/content/groups/public/'
      
     }
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-data-jpa'
    implementation 'org.springframework.boot:spring-boot-starter-web'
    
    runtime 'org.springframework.boot:spring-boot-starter-tomcat'
    runtime 'org.apache.tomcat.embed:tomcat-embed-jasper'
    runtimeOnly 'mysql:mysql-connector-java'
    testImplementation 'org.springframework.boot:spring-boot-starter-test'
}

项目架构

控制器

package com.lys.register.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
@RequestMapping("/register")
public class RegisterControll {

    @RequestMapping(method=RequestMethod.GET)
    public String home(){
        return "register";
    }
}

package com.lys.register.controller;


import javax.servlet.http.HttpSession;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

import com.lys.register.bean.LoginFrom;
import com.lys.register.model.User;
import com.lys.register.service.UserService;

@Controller
@RequestMapping("/login")
public class LoginController {
    
    @Autowired
    UserService UserService;

    @RequestMapping(method=RequestMethod.GET)
    public String home(){
        return "login";
    }
    
    @RequestMapping(value="doLogin",method=RequestMethod.POST)
    public String doLogin(LoginFrom login,Model model,HttpSession session) {
        User user = new User(login.getName(),login.getPwd());
        System.out.println(user);
        User loginUser=UserService.checkLogin(user, model);
        if(loginUser==null) {
            return "login";
        }else {
            session.setAttribute("user", loginUser);
            return "loginSuccess";
        }
        
    }
    
    @RequestMapping(value="doLogout",method=RequestMethod.GET)
    public String doLogout(HttpSession session) {
        session.invalidate();
        return "login";
    }
}

bean文件

package com.lys.register.bean;


public class LoginFrom {

    private String name;
    private String pwd;
    
    
    public LoginFrom() {
    }
    public LoginFrom(String name, String pwd) {
        super();
        this.name = name;
        this.pwd = pwd;
        
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPwd() {
        return pwd;
    }
    public void setPwd(String pwd) {
        this.pwd = pwd;
    }
    
    
}

package com.lys.register.bean;



public class RegisterFrom {

    private String name;
    private String pwd;
    private String email;
    
    public RegisterFrom() {
    }
    public RegisterFrom(String name, String pwd, String email) {
        super();
        this.name = name;
        this.pwd = pwd;
        this.email = email;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    public String getPwd() {
        return pwd;
    }
    public void setPwd(String pwd) {
        this.pwd = pwd;
    }
    public String getEmail() {
        return email;
    }
    public void setEmail(String email) {
        this.email = email;
    }
    
    
    
}

dao文件

package com.lys.register.dao;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import com.lys.register.model.User;

@Repository
public interface UserRepository extends JpaRepository<User, Long> {

    User findByUsername(String username);//数据库查询，约定find或get
}

model文件

package com.lys.register.dao;

import org.springframework.data.jpa.repository.JpaRepository;
import org.springframework.stereotype.Repository;

import com.lys.register.model.User;

@Repository
public interface UserRepository extends JpaRepository<User, Long> {

    User findByUsername(String username);//数据库查询，约定find或get
}

service

package com.lys.register.service;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.ui.Model;

import com.lys.register.dao.UserRepository;
import com.lys.register.model.User;

@Service
public class UserService {

    @Autowired
    UserRepository userRepository;
    
    public User addUser(User user,Model model) {
        try {
            User registerUser=userRepository.save(user);
            return registerUser;
        } catch (Exception e) {
             e.printStackTrace();
             model.addAttribute("error",e.getMessage());
        }
        
        return null;
    }
    
    public User checkLogin(User user,Model model) {
        User findUser = userRepository.findByUsername(user.getUsername());
        if(findUser==null) {
            model.addAttribute("error","用户名不存在");
            return null;
        }else {
            if(findUser.getPassword().equals(user.getPassword())) {
                return findUser;
            }else {
                model.addAttribute("error","用户名和密码不匹配");
                return null;
            }
        }
    }

}

jsp文件

login.jsp

<%@page import="com.lys.register.model.User"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户登录</title>
    <style type="text/css">
    
        .error{
          color:red;
        }
    </style>
</head>
<body>

    <%
       User user = (User)session.getAttribute("user");
      if(user==null){
          String error = (String)request.getAttribute("error");
          if(error !=null){
    %>
    <div class="error">
       ${error}
    </div>
    <%
          }
    %>
       <form action="/login/doLogin" method="post">
                  用户名： <input type="text" name="name"><br/>
                  密码： <input type="password" name="pwd"><br/>           
               <input type="submit" name="登录" value="登录"><br/>
       </form>
   <%
      }else{
          out.println("欢迎"+user.getUsername()+"<a href=\"/login/doLogout\">退出登录</a>");
      }
   %>
</body>
</html>

loginSuccess.jsp


<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户登录</title>
</head>
<body>

 

   恭喜${sessionScope.user.username}&lt;${sessionScope.user.email}&gt;登录成功！
</body>
</html>

register.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户注册</title>
</head>
<body>

   <form action="/register/doRegister" method="post">
              用户名： <input type="text" name="name"><br/>
              邮箱： <input type="text" name="email"><br/>
              密码： <input type="password" name="password"><br/>
           <input type="submit" name="注册" value="注册"><br/>
   </form>
</body>
</html>

registerSuccess.jsp

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户注册</title>
</head>
<body>

   注册成功！<a herf="/login">转到登录</a>
</body>
</html>

registerFailed

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>用户注册</title>
</head>
<body>

   注册失败！失败原因 ${error}
</body>
</html>

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