Java开发之手把手教你搭建企业级工程SSM框架

Java开发之手把手教你搭建企业级工程SSM框架

目录1.在IDEA界面中创建MavenWeb工程2.在pom.xml中添加如下相关依赖3.web.xml 配置 Spring MVC、Spring4.分别在main目录下创建resource包5.在spring.xml中连接数据库6.springmvc.xml中配置驱动和前后缀表达式7.配置打印sql语句和指定实体类，让idea搜索需要的javaBean8.创建与数据库相对应的实体类9.Handler10.Service及其接口11.Repository12.测试所用的jsp

关于Spring + Spring MVC + MyBatis的搭建

1.在IDEA界面中创建MavenWeb工程

选中下图maven-archetype-webapp

2.在pom.xml中添加如下相关依赖

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

org.example

ssm

1.0-SNAPSHOT

war

ssm Maven Webapp

http://example.com

UTF-8

1.8

1.8

org.springframework

spring-webmvc

5.3.9

org.springframework

spring-jdbc

5.3.9

org.springframework

spring-aop

5.3.9

org.springframework

spring-aspects

5.3.9

org.mybatis

mybatis-spring

2.0.6

org.mybatis

mybatis

3.4.5

mysql

mysql-connector-java

8.0.11

c3p0

c3p0

0.9.1.2

org.projectlombok

lombok

1.18.20

jstl

jstl

1.2

javax.servlet

javax.servlet-api

4.0.1

ssm

maven-clean-plugin

3.1.0

maven-resources-plugin

3.0.2

maven-compiler-plugin

3.8.0

</plugin>

maven-surefire-plugin

2.22.1

maven-war-plugin

3.2.2

maven-install-plugin

2.5.2

jxfwvgxN

maven-deploy-plugin

2.8.2

src/main/java

**/*.xml

xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">

4.0.0

org.example

ssm

1.0-SNAPSHOT

war

ssm Maven Webapp

http://example.com

UTF-8

1.8

1.8

org.springframework

spring-webmvc

5.3.9

org.springframework

spring-jdbc

5.3.9

org.springframework

spring-aop

5.3.9

org.springframework

spring-aspects

5.3.9

org.mybatis

mybatis-spring

2.0.6

org.mybatis

mybatis

3.4.5

mysql

mysql-connector-java

8.0.11

c3p0

c3p0

0.9.1.2

org.projectlombok

lombok

1.18.20

jstl

jstl

1.2

javax.servlet

javax.servlet-api

4.0.1

ssm

maven-clean-plugin

3.1.0

maven-resources-plugin

3.0.2

maven-compiler-plugin

3.8.0

</plugin>

maven-surefire-plugin

2.22.1

maven-war-plugin

3.2.2

maven-install-plugin

2.5.2

jxfwvgxN

maven-deploy-plugin

2.8.2

src/main/java

**/*.xml

3.web.xml 配置 Spring MVC、Spring

设置字符编码过滤器、加载静态资源。

"-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"

"http://java.sun.com/dtd/web-app_2_3.dtd" >

Archetype Created Web Application

contextConfigLocation

classpath:spring.xml

org.springframework.web.context.ContextLoaderListener

dispatcher

org.springframework.web.servlet.DispatcherServlet

contextConfigLocation

classpath:springmvc.xml

dispatcher

/

character

org.springframework.web.filter.CharacterEncodingFilter

encoding

utf-8

forceRequestEncoding

true

forceResponseEncoding

true

character

/*

default

*.js

default

*.png

default

*.css

4.分别在main目录下创建resource包

并创建spring,springmvc,mybatis.xml文件

5.在spring.xml中连接数据库

将user和password改成自己的数据库用户名和密码，并将3306/后面改成连接数据库的包名，紧接着配置SqlSessionFactory,扫描Mapper接口，事务管理等。

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop"

xmlns:tx="http://springframework.org/schema/tx"

xsi:schemaLocation="http://springframework.org/schema/aop

http://springframework.org/schema/aop/spring-aop-4.3.xsd

http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-3.2.xsd

http://springframework.org/schema/tx

http://springframework.org/schema/tx/spring-tx-4.3.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-4.3.xsd">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:aop="http://springframework.org/schema/aop"

xmlns:tx="http://springframework.org/schema/tx"

xsi:schemaLocation="http://springframework.org/schema/aop

http://springframework.org/schema/aop/spring-aop-4.3.xsd

http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-3.2.xsd

http://springframework.org/schema/tx

http://springframework.org/schema/tx/spring-tx-4.3.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-4.3.xsd">

6.springmvc.xml中配置驱动和前后缀表达式

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:mvc="http://springframework.org/schema/mvc"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-3.0.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-3.0.xsd

http://springframework.org/schema/mvc

http://springframework.org/schema/mvc/spring-mvc-3.2.xsd">

xmlns:xsi="http://w3.org/2001/XMLSchema-instance"

xmlns:context="http://springframework.org/schema/context"

xmlns:mvc="http://springframework.org/schema/mvc"

xsi:schemaLocation="http://springframework.org/schema/beans

http://springframework.org/schema/beans/spring-beans-3.0.xsd

http://springframework.org/schema/context

http://springframework.org/schema/context/spring-context-3.0.xsd

http://springframework.org/schema/mvc

http://springframework.org/schema/mvc/spring-mvc-3.2.xsd">

7.配置打印sql语句和指定实体类，让idea搜索需要的javaBean

"http://mybatis.org/dtd/mybatis-3-config.dtd">

http://

8.创建与数据库相对应的实体类

9.Handler

package com.south.controller;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.GetMapping;

import org.springframework.web.bind.annotation.RequestMapping;

import org.springframework.web.servlet.ModelAndView;

import com.south.service.UserService;

@Controller

@RequestMapping("/user")

public class UserHandler {

@Autowired

private UserService userService;

@GetMapping("/index")

public ModelAndView index(){

ModelAndView modelAndView=new ModelAndView();

modelAndView.setViewName("index");

modelAndView.addObject("list",userService.findAll());

return modelAndView;

}

}

10.Service及其接口

package com.south.service.impl;

import com.south.entity.User;

import org.springframework.beans.factory.annotation.Autowired;

import org.springframework.stereotype.Service;

import com.south.repository.UserRepository;

import com.south.service.UserService;

import java.util.List;

@Service

public class UserServiceimpl implements UserService {

@Autowired

private UserRepository userRepository;

@Override

public List findAll() {

return userRepository.findAll();

}

}

package com.south.service;

import com.south.entity.User;

import java.util.List;

public interface UserService {

public List findAll();

}

11.Repository

"http://mybatis.org/dtd/mybatis-3-mapper.dtd">

select * from t_user

12.测试所用的jsp

<%@page contentType="text/html;charset=UTF-8" %>

<%@page isELIgnored="false" %>

<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>

Title

${user.id}-${user.username}-${user.password}-${user.age}

最后放出根目录的图片，方便大家学习参考

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