使用idea工具搭建SSM

使用idea工具搭建SSM

1.创建一个新工程

2.选择maven,勾选如图所示的地方，下面选择webapp，注意是maven的webapp，不要选错了

3.取名，然后next

4.选择自己maven的存放路径以及配置文件路径，如果不选择默认的，钩上Override选指定的路径即可

5.还是取名，然后点finish

6.首先按照这个图，创建这些文件以及文件夹

7.pom.xml

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
  <modelVersion>4.0.0</modelVersion>

  <groupId>com.ssm</groupId>
  <artifactId>test-ssm</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

  <properties>
    <spring.version>4.3.14.RELEASE</spring.version>
    <pagehelper.version>5.1.2-beta</pagehelper.version>
    <mysql.version>5.1.6</mysql.version>
    <mybatis.spring.version>1.2.3</mybatis.spring.version>
    <mybatis.version>3.1.1</mybatis.version>
    <junit.version>4.12</junit.version>
    <jstl.version>1.2</jstl.version>
    <jsqlparser.version>1.0</jsqlparser.version>
    <jackson.version>1.2.7</jackson.version>
    <servlet-api.version>3.1.0</servlet-api.version>
    <druid.version>1.0.18</druid.version>
    <log4j.version>1.2.16</log4j.version>
    <commons-logging.version>1.2</commons-logging.version>
    <commons-fileupload.version>1.2.1</commons-fileupload.version>
    <commons-io.version>1.3.2</commons-io.version>
    <commons-lang.version>2.6</commons-lang.version>
    <aopalliance.version>1.0</aopalliance.version>
    <mybatis-generator.version>1.3.5</mybatis-generator.version>
  </properties>

  <dependencies>

    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>${junit.version}</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>${mybatis.version}</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>${mybatis.spring.version}</version>
    </dependency>

    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>${mysql.version}</version>
    </dependency>

    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>${druid.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>

    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <!-- JSP相关 -->
    <dependency>
      <groupId>jstl</groupId>
      <artifactId>jstl</artifactId>
      <version>${jstl.version}</version>
    </dependency>

    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>${servlet-api.version}</version>
      <scope>provided</scope>
    </dependency>

    <!-- pageHelper -->
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>${pagehelper.version}</version>
    </dependency>

    <!--jsqlparser-->
    <dependency>
      <groupId>com.github.jsqlparser</groupId>
      <artifactId>jsqlparser</artifactId>
      <version>${jsqlparser.version}</version>
    </dependency>
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>

    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>${commons-logging.version}</version>
    </dependency>

    <dependency>
      <groupId>commons-fileupload</groupId>
      <artifactId>commons-fileupload</artifactId>
      <version>${commons-fileupload.version}</version>
    </dependency>

    <dependency>
      <groupId>commons-io</groupId>
      <artifactId>commons-io</artifactId>
      <version>${commons-io.version}</version>
    </dependency>

    <dependency>
      <groupId>commons-lang</groupId>
      <artifactId>commons-lang</artifactId>
      <version>${commons-lang.version}</version>
    </dependency>

    <dependency>
      <groupId>aopalliance</groupId>
      <artifactId>aopalliance</artifactId>
      <version>${aopalliance.version}</version>
    </dependency>

    <dependency>
      <groupId>org.mybatis.generator</groupId>
      <artifactId>mybatis-generator-core</artifactId>
      <version>${mybatis-generator.version}</version>
    </dependency>

    <!-- lombok -->
    <dependency>
      <groupId>org.projectlombok</groupId>
      <artifactId>lombok</artifactId>
      <version>1.18.8</version>
    </dependency>
  </dependencies>

  <build>
    <!--<finalName>${project.artifactId}</finalName>-->
    <plugins>
      <!-- 资源文件拷贝插件 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-resources-plugin</artifactId>
        <version>2.7</version>
        <configuration>
          <encoding>UTF-8</encoding>
        </configuration>
      </plugin>
      <!-- java编译插件 -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.2</version>
        <configuration>
          <source>1.8</source>
          <target>1.8</target>
          <encoding>UTF-8</encoding>
        </configuration>
      </plugin>
    </plugins>
    <pluginManagement>
      <plugins>
        <!-- 配置Tomcat插件 -->
        <plugin>
          <groupId>org.apache.tomcat.maven</groupId>
          <artifactId>tomcat7-maven-plugin</artifactId>
          <version>2.2</version>
          <!-- <configuration>
               <port>8080</port>
               <path>/</path>
           </configuration>-->
        </plugin>
      </plugins>
    </pluginManagement>

    <resources>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
          <include>**/*.tld</include>
        </includes>
        <filtering>false</filtering>
      </resource>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>

  </build>

</project>

8.这里我使用了@Data注解，也就是使用了lombok插件，这样不用写get、set方法，先测试一下插件有没有生效

User.java

package com.ssm.pojo;

import lombok.AllArgsConstructor;
import lombok.Data;
import lombok.NoArgsConstructor;

/**
 *
 */
//导入的lombok
@Data    //提供getter/setter
@NoArgsConstructor //无参构造器
@AllArgsConstructor //有参构造器
public class User {
    private int id;
    private String username;
    private String password;

}

TestLombok.java

package com.ssm.pojo;

import org.junit.Test;

/**
 *
 */
public class TestLombok {
    @Test
    public void test1() {
        User u = new User();
        u.setId(1);
        u.setUsername("张三");
        u.setPassword("123");
        System.out.println(u);
    }
}

9.如果成功输出，说明配置成功，我们可以接着往下走

10.如果set方法报错，请点击左上角File -> Settings -> Plugins 在里面搜索lombok进行安装，安装好之后重启IDE即可

11.下面进入正题com.ssm包里面的内容,pojo包里面的内容我们上面写了这里就不写了

controller.UserController.java

package com.ssm.controller;

import com.ssm.pojo.User;
import com.ssm.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.ResponseBody;

/**
 *
 */
@Controller
@RequestMapping("user")
public class UserController {
    @Autowired
    UserService userService;

    @RequestMapping("find/{id}")
    @ResponseBody
    public  String findUser(@PathVariable("id") int id, Model model){
        User user = userService.findUserById(id);
        model.addAttribute("user",user);
        return user.toString();

    }
}

mapper.UserMapper.java

package com.ssm.mapper;

import com.ssm.pojo.User;

/**
 *
 */
public interface UserMapper {
    //添加
    public int add(User user);
    //查询
    public User findUserById(int id);
}

mapper.UserMapper.xml

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper
        PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
        "http://mybatis.org/dtd/mybatis-3-mapper.dtd">

<mapper namespace="com.ssm.mapper.UserMapper">
    <resultMap id="map" type="User">
        <id column="id" property="id"/>
        <result column="username" property="username"/>
        <result column="password" property="password"/>
    </resultMap>
    <select id="findUserById" parameterType="int" resultMap="map">
      select  * from user where id=#{id}
    </select>
</mapper>

service.UserService

package com.ssm.service;

import com.ssm.pojo.User;

/**
 *
 */
public interface UserService {
    //查询
    public User findUserById(int id);
}

service.impl.UserServiceImpl

package com.ssm.service.impl;

import com.ssm.mapper.UserMapper;
import com.ssm.pojo.User;
import com.ssm.service.UserService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

/**
 *
 */
@Service
public class UserServiceImpl implements UserService {
    @Autowired
    UserMapper userMapper;
    @Override
    public User findUserById(int id) {
        return userMapper.findUserById(id);
    }
}

12.resources文件夹

applicationContext

<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.3.xsd
      http://www.springframework.org/schema/aop
      http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
      http://www.springframework.org/schema/tx
      http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">


    <!-- 开启注解操作-->
    <context:annotation-config />
    <!-- 扫描包的路径 -->
    <context:component-scan base-package="com.ssm" />
    <!-- spring加载properties配置文件的配置 -->
    <context:property-placeholder ignore-unresolvable="true" location="classpath*:db.properties"/>
    <!-- spring和mybatis的整合之数据库 -->
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driverName}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    <!-- 指定mybaits的SQLSessionFactory -->
    <bean id="sqlSession" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="typeAliasesPackage" value="com.ssm.pojo" />
        <property name="dataSource" ref="dataSource"/>
        <property name="mapperLocations" value="classpath:com/ssm/mapper/UserMapper.xml"/>
    </bean>

    <!-- 配置扫描对应的mapper类 -->
    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.ssm.mapper"/>
        <property name="sqlSessionFactoryBeanName" value="sqlSession"/>
    </bean>
</beans>

db.properties(这里根据实际情况写)

jdbc.driverName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/crm?characterEncoding=UTF-8
jdbc.username=root
jdbc.password=root

springMVC.xml

<?xml version="1.0" encoding="UTF-8" ?>
<beans xmlns="http://www.springframework.org/schema/beans"
       xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
       xmlns:mvc="http://www.springframework.org/schema/mvc"
       xmlns:context="http://www.springframework.org/schema/context"
       xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
       xsi:schemaLocation="http://www.springframework.org/schema/beans
      http://www.springframework.org/schema/beans/spring-beans-4.3.xsd
      http://www.springframework.org/schema/mvc
      http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd
      http://www.springframework.org/schema/context
      http://www.springframework.org/schema/context/spring-context-4.3.xsd
      http://www.springframework.org/schema/aop
      http://www.springframework.org/schema/aop/spring-aop-4.3.xsd
      http://www.springframework.org/schema/tx
      http://www.springframework.org/schema/tx/spring-tx-4.3.xsd">

    <context:annotation-config/>

    <context:component-scan base-package="com.ssm.controller">
        <context:include-filter type="annotation"
                                expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <mvc:annotation-driven />

    <mvc:default-servlet-handler />

    <!-- 视图定位 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="viewClass"
                  value="org.springframework.web.servlet.view.JstlView" />
        <property name="prefix" value="/WEB-INF/jsp/" />
        <property name="suffix" value=".jsp" />
    </bean>
</beans>

13.webapp

web.xml

<?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"
         xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" version="2.5">

  <!-- spring的配置文件-->
  <context-param>
    <param-name>contextConfigLocation</param-name>
    <param-value>classpath:applicationContext.xml</param-value>
  </context-param>
  <listener>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>


  <!-- spring mvc核心：分发servlet -->
  <servlet>
    <servlet-name>mvc-dispatcher</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <!-- spring mvc的配置文件 -->
    <init-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:springMVC.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>mvc-dispatcher</servlet-name>
    <url-pattern>/</url-pattern>
  </servlet-mapping>

  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

index.jsp

<html>
<body>
<h2>Hello World!</h2>
</body>
</html>

14.搭建tomcat，选择Edit

15.如图所示

16.修改画框的地方

17.Deployment -> +号 -> Artifact ->选择如图所示的，然后修改下面的Application context

18.启动，出现helloword

19.在地址栏输入

20.出现结果（注意要保持数据库开启）

大功告成

转载：https://blog.csdn.net/a805814077/article/details/100671323