eclipse搭建springboot+ssm的demo

矫情吗；* 2022-03-18 05:23 340阅读 0赞

springboot:简化了ssm的xml配置,自带tomcat服务器;

什么是springboot?
    
     1) Spring Boot使编码变简单
    
     2) Spring Boot使配置变简单
    
     3) Spring Boot使部署变简单
    
     4) Spring Boot使监控变简单

SpringBoot是伴随着Spring4.0诞生的；

从字面理解，Boot是引导的意思，因此SpringBoot帮助开发者快速搭建Spring框架；

SpringBoot帮助开发者快速启动一个Web容器；

SpringBoot继承了原有Spring框架的优秀基因；

SpringBoot简化了使用Spring的过程。

Spring+SpringMVC+Mybatis开发框架ssm框架demo搭建|html|jsp

step1:java环境配置，安装jdk8，此步略。

step2:工具准备，安装java版eclipse

[https://www.eclipse.org/][https_www.eclipse.org]

step3:安装 Spring Tool Suite

help->Install New Software->通过下面地址进行安装

[http://download.springsource.com/release/TOOLS/update/e4.9/][http_download.springsource.com_release_TOOLS_update_e4.9]  
step4:重启eclipse

多了如上图标，这表示工具安装成功。

step5:手动创建springboot项目

New->Project->Spring Boot->Spring Starter Project

step6:项目名称

step7:根据你项目具体情况进行选择，这里选择Web+Mysql+DevTools+MyBatis+Thymeleaf

目录及文件创建情况：

step8:文件源码：

DolearnApplication.java:自动创建

StringUtil.java
    
    package com.example.demo.common;
     
    public class StringUtil {
    	public static boolean isNullOrZero (String str) {
    		if(str == null || str.trim().length() == 0) {
    			return true;
    		}
    		return false;
    	}
    }

controller层： LoginController.java

package com.example.demo.controller;
     
    import org.mybatis.spring.annotation.MapperScan;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Controller;
    import org.springframework.web.bind.annotation.RequestMapping;
    import org.springframework.web.bind.annotation.RequestMethod;
     
    import com.example.demo.entity.Member;
    import com.example.demo.service.IMember;
     
    @Controller 
    @MapperScan("com.example.demo.dao") //mapper扫描
    public class LoginController{
     
    	@Autowired
    	IMember iMemberFunc;
    	@RequestMapping(value = "/hello")
    	public String hello(){
    		System.out.println("Hello");
    		return "Log";
    	}
     
    	@RequestMapping(value = "/login",method = RequestMethod.GET)
        public String addUser1(String name,String password) {
            System.out.println("loginName is:"+name);
            System.out.println("loginPassword is:"+password);
            try {
    			Member member = iMemberFunc.login(name, password);
    			if(member == null){
    				System.out.println("登录失败");
    				return "Log_fail";
    			}else {
    				System.out.println("登录成功");
    				return "Log_success";
    			}
    		} catch (Exception e) {
    			// TODO Auto-generated catch block
    			e.printStackTrace();
    			System.out.println(e.getMessage());
    			System.out.println("登录异常");
    		}
    		return null;
            
    	}
     
    }

dao层： MemberDao.java

MemberDao.java
    
    package com.example.demo.dao;
     
    import org.apache.ibatis.annotations.Mapper;
    import org.apache.ibatis.annotations.Param;
    import com.example.demo.entity.Member;
    import org.apache.ibatis.annotations.Select;
     
    //@Mapper    
    public interface MemberDao {
        @Select("select * from Member where name = #{name}")
    	Member selectMemberByName(@Param("name")String name)throws Exception;
    }

实体类： Member.java

Member.java
    
    package com.example.demo.entity;
     
    public class Member {
    	private int id;
    	private String name;
    	private String password;
    	public Member(){}
    	public Member(int id, String name, String password) {
    		super();
    		this.id = id;
    		this.name = name;
    		this.password = password;
    	}
    	public int getId() {
    		return id;
    	}
    	public void setId(int id) {
    		this.id = id;
    	}
    	public String getName() {
    		return name;
    	}
    	public void setName(String name) {
    		this.name = name;
    	}
    	public String getPassword() {
    		return password;
    	}
    	public void setPassword(String password) {
    		this.password = password;
    	}
    	@Override
    	public String toString() {
    		return "Member [id=" + id + ", name=" + name + ", password=" + password
    				+ "]";
    	}
    	
    }

service接口层： IMember.java

IMember.java
    
    package com.example.demo.service;
     
    import com.example.demo.entity.Member;
     
    public interface IMember {
    	Member login(String name, String passsword) throws Exception;
    }

service接口实现层： IMemberImpl.java

MemberImpl.java
    
    package com.example.demo.service;
     
    import com.example.demo.service.IMember;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.stereotype.Service;
    import com.example.demo.common.StringUtil;
    import com.example.demo.entity.Member;
    import com.example.demo.dao.MemberDao;
     
    @Service
    public class MemberImpl implements IMember {
    		@Autowired
    		private MemberDao mDao;
     
    		public Member login(String name, String password) throws Exception {
    		// System.out.println(name + password);
    		if (StringUtil.isNullOrZero(name)) {
    			System.out.println("登录名不能为空");
    			return null;
    		}
    		if (StringUtil.isNullOrZero(password)) {
    			System.out.println("密码不能为空");
    			return null;
    		}
    		Member member = mDao.selectMemberByName(name);
    		if (member == null)
    			System.out.println("登录名错误");
    		if (member != null&&member.getName().equals(name)&&!password.equals(member.getPassword())) {
    			System.out.println("密码错误");	
    		return null;
    		}
    		return member;
    	}
     
    }

视图层： Log\_fail.html

Log_fail.html
    
    <!DOCTYPE html>
    <html>
    <head>
    <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>登录失败</title>
        <style>
        .center {
        margin: auto;
        width: 20%;
        border: 3px solid #73AD21;
        padding: 5px;
        text-align: center;
        }
        </style>
    </head>
    </head>
     
    <body>
       <div class="center">	
    	       <h1>登录失败</h1>	   
    	       <div class="alert alert-warning" role="alert">账号或密码错误</div>
    	       <span class="btn btn-default"> <a href="/hello" role="button"> [返回]</a></span> 	       	
    	</div>
    </body>
    </html>

视图层： Log\_success.html

Log_success.html
    
    <!DOCTYPE html>
    <html>
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>登录成功</title>
        <style>
        .center {
        margin: auto;
        width: 20%;
        border: 3px solid #73AD21;
        padding: 5px;
        text-align: center;
        }
        </style>
    </head>
     
     
    <body>
       <div class="center">
    	  	<h1>登录成功</h1>	  
    	    <span class="btn btn-default"> <a href="/hello" role="button"> [退出]</a></span>	  
    	</div>
    </body>
    </html>

视图层： Log.html

Log.html
    
    <!DOCTYPE html >
    <html >
    <head>
        <meta charset="utf-8">
        <meta http-equiv="X-UA-Compatible" content="IE=edge">
        <meta name="viewport" content="width=device-width, initial-scale=1">
        <title>登录页面</title>
        <style>
        .center {
        margin: auto;
        width: 15%;
        border: 3px solid #73AD21;
        padding: 5px;
        text-align: center;
        }
        
        </style>
    </head>
    <body>
    	<div >
    		<div class="center">			
    			<form action="/login" >				  		
    				<input type="text" name="name" value="" placeholder="用户名">	<br>		
    				<input type="password" name="password" value="" placeholder="密码"><br>				
    				<input type="submit" name="" value="登录">			
    			</form>		
    			
    		</div>
    		
    	</div>
    </body>
    </html>

application.properties

spring.datasource.url=jdbc:mysql://127.0.0.1:3306/test
    spring.datasource.username=root
    spring.datasource.password=123456
     
    #mybatis.config-location=classpath:mybatis-config.xml    
    #mybatis.mapper-locations=classpath*:mapper/**/*.xml
    mybatis.type-aliases-package=com.example.demo
    
    spring.mvc.view.prefix=/WEB-INF/views/
    spring.mvc.view.suffix=.jsp

数据库member表

运行项目，浏览器访问

[http://localhost:8080/hello][http_localhost_8080_hello]

以上文章转载于这个大佬鼠的csdn:[https://my.oschina.net/guiguketang/blog/2252343][https_my.oschina.net_guiguketang_blog_2252343]  
大家可以多多关注一下这只大佬鼠的博客和文章哦~

[https_www.eclipse.org]: https://www.eclipse.org/
[http_download.springsource.com_release_TOOLS_update_e4.9]: http://download.springsource.com/release/TOOLS/update/e4.9/
[http_localhost_8080_hello]: http://localhost:8080/hello
[https_my.oschina.net_guiguketang_blog_2252343]: https://my.oschina.net/guiguketang/blog/2252343