教你如何用IDEA搭建 SSM(Spring+SpringMVC+Mybatis)框架整合_超详细步骤

朱雀 2023-02-20 07:41 180阅读 0赞

# SSM整合-环境搭建 #

## 一.简述: ##

ssm分别代表什么?

Spring  springMVC  MyBatis

![up-5da025171993e8f9642c5f94fa04ede2b0c.png][]

## 二. **详细的环境搭建步骤** ##

### **1. 创建maven-webapp项目**  ###

![up-793b2df809e78b4c4e9af0161a0c4c82ec1.png][]

![up-de8dd5fa196ac00ac7a6581b62c66e6b537.png][]

①导入pom.xml 修改项目名

![up-a13870ff34bb6e378ebb1cdbbeb37309fc2.png][]

*  pom.xml

<?xml version="1.0" encoding="UTF-8"?>
    
    <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.czxy</groupId>
      <artifactId>ssm1</artifactId>
      <version>1.0-SNAPSHOT</version>
      <packaging>war</packaging>
    
      <name>ssm1 Maven Webapp</name>
      
      <url>http://www.example.com</url>
    
      <properties>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <maven.compiler.source>1.7</maven.compiler.source>
        <maven.compiler.target>1.7</maven.compiler.target>
      </properties>
      <dependencies>
        <dependency>
          <groupId>junit</groupId>
          <artifactId>junit</artifactId>
          <version>4.11</version>
          
        </dependency>
        
        <dependency>
          <groupId>javax.activation</groupId>
          <artifactId>activation</artifactId>
          <version>1.1</version>
        </dependency>
        <dependency>
          <groupId>com.aliyuncs</groupId>
          <artifactId>aliyun-java-sdk-core</artifactId>
          <version>3.3.1</version>
        </dependency>
        <dependency>
          <groupId>com.aliyuncs.dysmsapi</groupId>
          <artifactId>aliyun-java-sdk-dysmsapi</artifactId>
          <version>1.0.0</version>
        </dependency>
        <dependency>
          <groupId>commons-beanutils</groupId>
          <artifactId>commons-beanutils</artifactId>
          <version>1.8.3</version>
          <exclusions>
            <exclusion>
              <artifactId>commons-logging</artifactId>
              <groupId>commons-logging</groupId>
            </exclusion>
          </exclusions>
        </dependency>
        <dependency>
          <groupId>commons-collections</groupId>
          <artifactId>commons-collections</artifactId>
          <version>3.2.1</version>
        </dependency>
        <dependency>
          <groupId>commons-lang</groupId>
          <artifactId>commons-lang</artifactId>
          <version>2.5</version>
        </dependency>
        <dependency>
          <groupId>commons-logging</groupId>
          <artifactId>commons-logging</artifactId>
          <version>1.2</version>
        </dependency>
        <dependency>
          <groupId>dom4j</groupId>
          <artifactId>dom4j</artifactId>
          <version>1.6.1</version>
        </dependency>
        <dependency>
          <groupId>el-api</groupId>
          <artifactId>el-api</artifactId>
          <version>1.0</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>net.sf.ezmorph</groupId>
          <artifactId>ezmorph</artifactId>
          <version>1.0.6</version>
          <exclusions>
            <exclusion>
              <artifactId>commons-lang</artifactId>
              <groupId>commons-lang</groupId>
            </exclusion>
          </exclusions>
        </dependency>
        <dependency>
          <groupId>com.czxy</groupId>
          <artifactId>itcast-tools</artifactId>
          <version>1.5.7</version>
        </dependency>
        <dependency>
          <groupId>net.sf.json-lib</groupId>
          <artifactId>json-lib</artifactId>
          <version>2.2.3</version>
          <classifier>JDK15</classifier>
          <exclusions>
            <exclusion>
              <artifactId>commons-logging</artifactId>
              <groupId>commons-logging</groupId>
            </exclusion>
            <exclusion>
              <artifactId>commons-collections</artifactId>
              <groupId>commons-collections</groupId>
            </exclusion>
            <exclusion>
              <artifactId>commons-beanutils</artifactId>
              <groupId>commons-beanutils</groupId>
            </exclusion>
            <exclusion>
              <artifactId>commons-lang</artifactId>
              <groupId>commons-lang</groupId>
            </exclusion>
          </exclusions>
        </dependency>
        <dependency>
          <groupId>javax.servlet.jsp</groupId>
          <artifactId>javax.servlet.jsp-api</artifactId>
          <version>2.3.1</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>jstl</groupId>
          <artifactId>jstl</artifactId>
          <version>1.2</version>
        </dependency>
        <dependency>
          <groupId>log4j</groupId>
          <artifactId>log4j</artifactId>
          <version>1.2.17</version>
        </dependency>
        <dependency>
          <groupId>javax.mail</groupId>
          <artifactId>mail</artifactId>
          <version>1.3.2</version>
        </dependency>
        <dependency>
          <groupId>javax.servlet</groupId>
          <artifactId>javax.servlet-api</artifactId>
          <version>3.1.0</version>
          <scope>provided</scope>
        </dependency>
        <dependency>
          <groupId>taglibs</groupId>
          <artifactId>standard</artifactId>
          <version>1.1.2</version>
        </dependency>
        
        <dependency>
          <groupId>tk.mybatis</groupId>
          <artifactId>mapper</artifactId>
          <version>3.5.2</version>
        </dependency>
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis</artifactId>
          <version>3.4.5</version>
        </dependency>
        <dependency>
          <groupId>mysql</groupId>
          <artifactId>mysql-connector-java</artifactId>
          <version>5.1.39</version>
        </dependency>
        <dependency>
          <groupId>com.github.pagehelper</groupId>
          <artifactId>pagehelper</artifactId>
          <version>3.7.5</version>
        </dependency>
        <dependency>
          <groupId>com.github.jsqlparser</groupId>
          <artifactId>jsqlparser</artifactId>
          <version>0.9.1</version>
        </dependency>
        <dependency>
          <groupId>javax.persistence</groupId>
          <artifactId>persistence-api</artifactId>
          <version>1.0</version>
        </dependency>
        
        <dependency>
          <groupId>aopalliance</groupId>
          <artifactId>aopalliance</artifactId>
          <version>1.0</version>
        </dependency>
        <dependency>
          <groupId>org.aspectj</groupId>
          <artifactId>aspectjweaver</artifactId>
          <version>1.8.7</version>
        </dependency>
        <dependency>
          <groupId>com.alibaba</groupId>
          <artifactId>druid</artifactId>
          <version>1.0.31</version>
        </dependency>
        <dependency>
          <groupId>org.mybatis</groupId>
          <artifactId>mybatis-spring</artifactId>
          <version>1.3.2</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aop</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-aspects</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-beans</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-context</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-core</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-expression</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-jdbc</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-test</artifactId>
          <version>4.2.4.RELEASE</version>
          
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-tx</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        
        <dependency>
          <groupId>aopalliance</groupId>
          <artifactId>aopalliance</artifactId>
          <version>1.0</version>
        </dependency>
        <dependency>
          <groupId>commons-fileupload</groupId>
          <artifactId>commons-fileupload</artifactId>
          <version>1.2.2</version>
        </dependency>
        <dependency>
          <groupId>commons-io</groupId>
          <artifactId>commons-io</artifactId>
          <version>2.3</version>
        </dependency>
        <dependency>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-annotations</artifactId>
          <version>2.8.4</version>
        </dependency>
        <dependency>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-core</artifactId>
          <version>2.8.4</version>
        </dependency>
        <dependency>
          <groupId>org.codehaus.jackson</groupId>
          <artifactId>jackson-core-asl</artifactId>
          <version>1.9.13</version>
        </dependency>
        <dependency>
          <groupId>com.fasterxml.jackson.core</groupId>
          <artifactId>jackson-databind</artifactId>
          <version>2.8.4</version>
          <exclusions>
            <exclusion>
              <artifactId>jackson-annotations</artifactId>
              <groupId>com.fasterxml.jackson.core</groupId>
            </exclusion>
          </exclusions>
        </dependency>
        <dependency>
          <groupId>org.codehaus.jackson</groupId>
          <artifactId>jackson-mapper-asl</artifactId>
          <version>1.9.13</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-orm</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-web</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
        <dependency>
          <groupId>org.springframework</groupId>
          <artifactId>spring-webmvc</artifactId>
          <version>4.2.4.RELEASE</version>
        </dependency>
      </dependencies>
    
      <build>
        <finalName>ssm1</finalName>
        <pluginManagement>
          <plugins>
            
            <plugin>
              <groupId>org.apache.maven.plugins</groupId>
              <artifactId>maven-compiler-plugin</artifactId>
              <version>3.3</version>
              <configuration>
                <source>1.8</source>
                <target>1.8</target>
                <encoding>UTF-8</encoding>
                <showWarnings>true</showWarnings>
              </configuration>
            </plugin>
            
            <plugin>
              <groupId>org.apache.tomcat.maven</groupId>
              <artifactId>tomcat7-maven-plugin</artifactId>
              <version>2.1</version>
              <configuration>
                <port>8080</port>
                <server>tomcat7</server>
              </configuration>
            </plugin>
            <plugin>
              <artifactId>maven-clean-plugin</artifactId>
              <version>3.1.0</version>
            </plugin>
            
            <plugin>
              <artifactId>maven-resources-plugin</artifactId>
              <version>3.0.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-compiler-plugin</artifactId>
              <version>3.8.0</version>
            </plugin>
            <plugin>
              <artifactId>maven-surefire-plugin</artifactId>
              <version>2.22.1</version>
            </plugin>
            <plugin>
              <artifactId>maven-war-plugin</artifactId>
              <version>3.2.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-install-plugin</artifactId>
              <version>2.5.2</version>
            </plugin>
            <plugin>
              <artifactId>maven-deploy-plugin</artifactId>
              <version>2.8.2</version>
            </plugin>
          </plugins>
        </pluginManagement>
        <resources>
          <resource>
            <directory>src/main/java</directory>
            
            <includes>
              <include>**/*.xml</include>
            </includes>
          </resource>
          
          <resource>
            <directory>src/main/resources</directory>
          </resource>
        </resources>
      </build>
    </project>

②向web-inf导入web.xml

![up-e82c7b5304e91cf5269564bfc015015caa6.png][]

*  web.xml

<?xml version="1.0" encoding="UTF-8"?>
    <web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
             xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
             xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
             version="3.1">
        
    </web-app>

③创建java和resources

> **注意: **
> 
> **Java 标记为源码根**
> 
> **resources 标记为配置文件根**

首先创建两个文件夹并命名,然后再分别进行标记

java:

![up-3ee953e80d271fb2dce49dd8d43ee16bf4f.png][]

resources:

![up-f4e7088fb1d79028617e081fd8751906255.png][]

![up-d5fa5ca3ec8f581711989b4ad7ebe31a853.png][]

④检查pom.xml中配置文件目录的名字是否和 resources目录同名

![up-5f848f0fb09dfa39136f6806c1a8e0f1598.png][]

⑤配置tomcat

1. 点击Run -->Edit Configurations...

![up-1ac9c7bb82e3be9879d1e0116596249707b.png][]

2. 点左上 + 选择Tomcat Server

![up-0fe30f4afe19041fe66362d6e10ece64a32.png][]

3. 修改命名

![up-a1013485231f5f3b5047752e0349e71c9d3.png][]

4. 选择Deployment -->  点击"+"   --> 选择  Artifacts

![up-f0c97f2edcf377ec4ddc709b123ef5a2748.png][]

5. 选择第二个

![up-06c56b05f4bde71dd34ce4f9823fc960339.png][]

6. 路径命名最好与项目名一致

![up-c0cc9f01fd226f560283f585d17289c35dd.png][]

7. 选择Server , 修改浏览器,

并且改选为Update clasess and resources(如果默认Do nothing 项目的JSP,你每次需要重启)

![up-c36969013e1060606939413553ab046c5d6.png][]

最终点击确认即可

### **2. 创建config目录，导入配置文件** ###

![up-3ea4c42a57aee88e8b126b16321cd1eab69.png][]

①在java下创建config目录，导入四大配置文件

在此前,需要使用Notepad++编辑,检查是否编码为无BOM

![up-da6bbc0f866e5fbd6f9504184bd37657f3c.png][]

![up-4f8774fdb543d96b0f44a6dff96ed13bf5a.png][]

然后四个配置文件复制进config下即可

![up-38de4ada66921aea74006b7dadf25cee3ce.png][]

*      MVCConfiguration

package config;
    
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.ComponentScan;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.web.multipart.commons.CommonsMultipartResolver;
    import org.springframework.web.servlet.config.annotation.EnableWebMvc;
    import org.springframework.web.servlet.config.annotation.WebMvcConfigurerAdapter;
    import org.springframework.web.servlet.view.InternalResourceViewResolver;
    
    /**EnableWebMvc:开启MVC配置
    * 要在该配置类中配置ComponentScan，否则无法使用resources注解在此加拦截器
    */
    @Configuration
    @ComponentScan(basePackages={"com.czxy"})
    @EnableWebMvc
    public class MVCConfiguration extends WebMvcConfigurerAdapter{
    	/**配置一个视图解析器*/
    	@Bean
    	public InternalResourceViewResolver viewResolver(){
    		//1、创建一个内部资源视图解析器
    		InternalResourceViewResolver viewResolver = new InternalResourceViewResolver();
    		//2、设置解析器前缀
    		viewResolver.setPrefix("/");
    		//3、设置解析器后缀
    		viewResolver.setSuffix(".jsp");
    		return viewResolver;
    	}
    	/**文件上传解析器:方法名必须为multipartResolver*/
    	@Bean
    	public CommonsMultipartResolver multipartResolver(){
    		CommonsMultipartResolver multipartResolver = new CommonsMultipartResolver();
    		//上传最大文件限制：5242880字节 = 5MB
    		multipartResolver.setMaxUploadSize(5242880);
    		//缓存设置：4096字节 = 4KB
    		multipartResolver.setMaxInMemorySize(4096);
    		multipartResolver.setDefaultEncoding("UTF-8");
    		return multipartResolver;
    	}
    }

*      MyBatisConfiguration

package config;
    
    import com.github.pagehelper.PageHelper;
    import org.apache.ibatis.plugin.Interceptor;
    import org.apache.ibatis.session.Configuration;
    import org.apache.ibatis.session.SqlSessionFactory;
    import org.mybatis.spring.SqlSessionFactoryBean;
    import org.springframework.context.annotation.Bean;
    import tk.mybatis.spring.mapper.MapperScannerConfigurer;
    
    import javax.sql.DataSource;
    import java.util.Properties;
    public class MyBatisConfiguration {
    	
    	@Bean
    	public SqlSessionFactory sessionFactory(DataSource dataSource) throws Exception{
    		SqlSessionFactoryBean factoryBean = new SqlSessionFactoryBean();
    		//1 数据源
    		factoryBean.setDataSource(dataSource);
    		//2 全局配置
    		Configuration configuration = new Configuration();
    		//驼峰映射(根据需要开启)
    		//configuration.setMapUnderscoreToCamelCase(true);
    		factoryBean.setConfiguration(configuration);
    		//3 分页助手
    		PageHelper pageHelper = new PageHelper();
    		Properties pageProps = new Properties();
    		pageProps.setProperty("dialect", "mysql");
    		pageProps.setProperty("rowBoundsWithCount", "true");
    		pageHelper.setProperties(pageProps);
    		factoryBean.setPlugins(new Interceptor[]{pageHelper});
    		//4 通过工厂bean获得对象
    		return factoryBean.getObject();
    	}
    	
    	@Bean
    	public MapperScannerConfigurer scannerConfigurer(){
    		MapperScannerConfigurer mapperScannerConfigurer = new MapperScannerConfigurer();
    		//注册Dao。（注册时，修改包路径即可）
    		//mapperScannerConfigurer.setBasePackage("com.czxy.product.dao,com.czxy.category.dao");
    		mapperScannerConfigurer.setBasePackage("com.czxy.user.dao");
    		return mapperScannerConfigurer;
    	}
    }

*      SpringConfiguration

package config;
    
    import com.alibaba.druid.pool.DruidDataSource;
    import org.springframework.beans.factory.annotation.Value;
    import org.springframework.context.annotation.Bean;
    import org.springframework.context.annotation.Configuration;
    import org.springframework.context.annotation.PropertySource;
    import org.springframework.context.support.PropertySourcesPlaceholderConfigurer;
    import org.springframework.jdbc.datasource.DataSourceTransactionManager;
    import org.springframework.transaction.annotation.EnableTransactionManagement;
    
    import javax.sql.DataSource;
    
    /**
     * spring配置类
     * @author liuyue
     * 以下三个注解分别为：
     * 1、标明当前为配置类
     * 2、加载db.property配置文件
     * 3、启动spring事务管理器
     */
    @Configuration
    @PropertySource("classpath:db.properties")
    @EnableTransactionManagement
    public class SpringConfiguration {
    	
    	/**spring 4.2.4 解析properties文件必有*/
    	@Bean
    	public static PropertySourcesPlaceholderConfigurer config(){
    		return new PropertySourcesPlaceholderConfigurer();
    	}
    	
    	/**获取数据*/
    	@Value("${jdbc.driver}")
    	private String driver;
    	@Value("${jdbc.url}")
    	private String url;
    	@Value("${jdbc.username}")
    	private String username;
    	@Value("${jdbc.password}")
    	private String password;
    	
    	/**配置数据源-使用阿里druid*/
    	@Bean
    	public DataSource getDataSource(){
    		DruidDataSource dataSource = new DruidDataSource();
    		dataSource.setDriverClassName(driver);
    		dataSource.setUrl(url);
    		dataSource.setUsername(username);
    		dataSource.setPassword(password);
    		return dataSource;
    	}
    	
    	/**配置事务管理器*/
    	@Bean
    	public DataSourceTransactionManager txManager(DataSource dataSource){
    		return new DataSourceTransactionManager(dataSource);
    	}
    }

*      WebInitializer

package config;
    
    import org.springframework.web.WebApplicationInitializer;
    import org.springframework.web.context.support.AnnotationConfigWebApplicationContext;
    import org.springframework.web.filter.CharacterEncodingFilter;
    import org.springframework.web.servlet.DispatcherServlet;
    
    import javax.servlet.ServletContext;
    import javax.servlet.ServletException;
    import javax.servlet.ServletRegistration.Dynamic;
    
    public class WebInitializer implements WebApplicationInitializer {
    	/**项目启动时会执行该方法*/
    	@Override
    	public void onStartup(ServletContext servletContext) throws ServletException {
    		/**1、初始化Spring容器（Bean对象的公寓）*/
    		AnnotationConfigWebApplicationContext application = new AnnotationConfigWebApplicationContext();
    		//注册配置文件(将来spring和MyBatis配置文件都以该方式配置进来)
    		application.register(MVCConfiguration.class);
    		application.register(SpringConfiguration.class);
    		application.register(MyBatisConfiguration.class);
    		//将ServletContext设置进Spring容器
    		application.setServletContext(servletContext);
    		
    		/**2、post乱码解决*/
    		javax.servlet.FilterRegistration.Dynamic encodingFilter = 
    				servletContext.addFilter("CharacterEncodingFilter", new CharacterEncodingFilter("UTF-8"));
    		//设置拦截处理乱码路径
    		encodingFilter.addMappingForUrlPatterns(null, true, "/*");
    		/**3、向servletContext中添加一个前端控制器*/
    		Dynamic springMVCServlet = 
    				servletContext.addServlet("springmvc", new DispatcherServlet(application));
    		//控制器仅拦截*.action的请求
    		springMVCServlet.addMapping("*.action");
    		springMVCServlet.setLoadOnStartup(2);
    	}
    }

注意: 第一次导的人可能会报错: Alt+回车, 导包即可

![up-9ef26e7b7e1080aa8e31d382237a5365947.png][]

**然后去检查WebInitializer.java文件,是否注册了另外三个文件**

**(MybatisConfiguartion.class没注册进去的话, dao全报废**

**SpringConfiguration.class没注册进去的话,事务报废**

**MVCConfiguration.class没注册进去的话,控制器报废**

**)**

![up-fad3e30062be76afd61f7acb60f6f221ff9.png][]

②把propertes文件导入到resources目录，并进行修改（db.properties）

![up-aedc77a46c30b03f32e5f77fbb22478fb7f.png][]

*  **db.properties**

jdbc.driver=com.mysql.jdbc.Driver
    jdbc.url=jdbc:mysql://127.0.0.1:3306/ssm_db1
    jdbc.username=root
    jdbc.password=1234

修改db.properties中相应数据库名即可

![up-e486ebce90e17b63780670630e250bd2c87.png][]

*  **log4j.properties**

### direct log messages to stdout ###
    log4j.appender.stdout=org.apache.log4j.ConsoleAppender
    log4j.appender.stdout.Target=System.out
    log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
    log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c:%L - %m%n
    
    log4j.rootLogger=debug, stdout
    
    #log4j.logger.com.ibatis = debug    
    #log4j.logger.com.ibatis.common.jdbc.SimpleDataSource = debug    
    #log4j.logger.com.ibatis.common.jdbc.ScriptRunner = debug    
    #log4j.logger.com.ibatis.sqlmap.engine.impl.SqlMapClientDelegate = debug    
    #log4j.logger.java.sql.Connection = debug    
    
    #log4j.logger.java.sql.Statement = debug    
    #log4j.logger.java.sql.PreparedStatement = debug    
    #log4j.logger.java.sql.ResultSet =debug 
    log4j.logger.org.apache.ibatis.transaction = info
    log4j.logger.org.apache.ibatis.io = info
    log4j.logger.org.apache.ibatis.datasource = info
    log4j.logger.org.apache.ibatis.logging = info

到这里,配置就全部完成了,那么下面教你如何你创建基本类

### **3. 创建package包&定义pojo** ###

![up-df0917e6d8532bee5cd3dba079f05b115fe.png][]

User类：

@Table(name="t_user")
    public class User implements Serializable{
        @Id
        private Integer uid;//主键ID
        @Column(name="login_name")
        private String login_name;//登录名
        @Column(name="login_pwd")
        private String login_pwd;//登录密码
        private Integer age;//年龄
        @DateTimeFormat(pattern = "yyyy-MM-dd")
        private Date birthday;//生日
        private String sex;//性别
        private String education;//学历
        private String telephone;//电话
        private String interest;//爱好
        private String remark;//备注
    
        @JsonFormat(pattern = "yyyy-MM-dd")
        public Date getBirthday() {
            return birthday;
        }
        //get set 有参 无参 toString
    }

### 4. **定义Dao接口继承通用Mapper，设置Mapper映射，注册Dao** ###

*  ![up-3a98339be7909dae5300017dfcff2d22b79.png][]

*  ![up-88626ed57485e0c49e97a7b8d8e51dc59e5.png][]

public interface UserDao extends Mapper<User> {
    
    }

UserDao.xml的映射设置：

![up-f90572a0543a9b7aa3cb44d572698ca3d33.png][]

<?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.czxy.user.dao.UserDao">
    
    
    </mapper>

注册Dao:

![up-b28b9e0d5c40e9776fff9076bca4e484359.png][]

### 5. **定义Service接口和实现类，实现类加入事务管控** ###

![up-edcdada81922d2d82a1971851ebb7e5fe4c.png][]

UserServiceImpl:``

@Service
    @Transactional
    public class UserServiceImpl implements UserService{
        @Resource
        private UserDao userDao;
    }

### 6. **定义控制器，设置控制器访问路径** ###

UserController``

@Controller
    @RequestMapping("/user")
    public class UserController {
        //因为将来一个接口下可能有多个实现类，建议接口类型变量名 = 实现类名小驼峰式命名
        @Resource
        private UserService userServiceImpl;
    }

![20200815172840927.png][]

### 7.  **webapp用于导入项目原型** ###

如:

![format_png][]

这样,SSM框架整合可就终于完成了 , 这一张张图截的, 手有点抖了呀~~

看了的兄弟们, 可必须得安排上了哈, 哈哈~~~

看完恭喜你,又知道了一点点!!!

**你知道的越多,不知道的越多! **

**~感谢志同道合的你阅读,  你的支持是我学习的最大动力 ! ****加油 ,陌生人一起努力,共勉!!**

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