JavaWeb项目IDEA整合SSM
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Spring MyBatis SpringMVC SSM

JavaWeb项目IDEA整合SSM

   软件工程   0 评论   1388 浏览

Spring MyBatis SpringMVC SSM

IDEA创建Maven中的web模板应用。项目目录结构如下：

ssm-project
├─src
│  ├─main
│  │  ├─java
│  │  │  └─com
│  │  │     └─yoyling
│  │  │        ├─controller
│  │  │        │  └─ScoreController.java
│  │  │        ├─domain
│  │  │        │  └─Score.java
│  │  │        ├─mapper
│  │  │        │  └─ScoreMapper.java
│  │  │        └─service
│  │  │           ├─impl
│  │  │           │  └─ScoreServiceImpl.java
│  │  │           └─ScoreService.java
│  │  ├─resources
│  │  │  ├─com
│  │  │  │  └─yoyling
│  │  │  │     └─mapper
│  │  │  │        └─ScoreMapper.xml
│  │  │  ├─dbconfig.properties
│  │  │  ├─log4j.properties
│  │  │  ├─mybatis-generator.xml
│  │  │  ├─spring-context.xml
│  │  │  └─spring-mvc.xml
│  │  └─webapp
│  │     ├─WEB-INF
│  │     │  └─pages
│  │     │     └─demo.jsp
│  │     └─index.jsp
│  └─test
│     └─com
│        └─yoyling
│           └─ServiceTest.java
└─pom.xml

ssm_project.sql

CREATE TABLE `score`  (
  `score_id` int(5) NOT NULL AUTO_INCREMENT,
  `xh` varchar(11) NULL DEFAULT NULL,
  `kch` varchar(10) NULL DEFAULT NULL,
  `cj` int(3) NULL DEFAULT NULL,
  `jd` float NULL DEFAULT NULL,
  `xf` float NULL DEFAULT NULL,
  PRIMARY KEY (`score_id`)
);
INSERT INTO `score` VALUES (1, '1812123206', 'R3210104', 92, 4.2, 3);

pom.xml依赖

<properties>
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <maven.compiler.source>1.8</maven.compiler.source>
    <maven.compiler.target>1.8</maven.compiler.target>
    <spring.version>5.0.2.RELEASE</spring.version>
    <mybatis.version>3.4.5</mybatis.version>
    <mybatis-spring.version>1.3.0</mybatis-spring.version>
    <mysql.version>5.1.6</mysql.version>
    <c3p0.version>0.9.1.2</c3p0.version>
    <aspectj.version>1.6.8</aspectj.version>
    <junit.version>4.12</junit.version>
    <servlet-api.version>3.1.0</servlet-api.version>
    <jsp-api.version>2.2</jsp-api.version>
    <jstl.version>1.2</jstl.version>
    <slf4j.version>1.6.6</slf4j.version>
    <log4j.version>1.2.12</log4j.version>
</properties>
<dependencies>
    <!-- spring -->
    <dependency>
        <groupId>org.aspectj</groupId>
        <artifactId>aspectjweaver</artifactId>
        <version>${aspectj.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-aop</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-context</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-web</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-webmvc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-tx</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-jdbc</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!-- 单元测试 -->
    <dependency>
        <groupId>junit</groupId>
        <artifactId>junit</artifactId>
        <version>${junit.version}</version>
        <scope>compile</scope>
    </dependency>
    <!-- jdbc数据库驱动 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>${mysql.version}</version>
    </dependency>
    <!-- 支持servlet和jsp的jar包 -->
    <dependency>
        <groupId>javax.servlet</groupId>
        <artifactId>javax.servlet-api</artifactId>
        <version>${servlet-api.version}</version>
        <scope>provided</scope>
    </dependency>
    <dependency>
        <groupId>javax.servlet.jsp</groupId>
        <artifactId>jsp-api</artifactId>
        <version>${jsp-api.version}</version>
        <scope>provided</scope>
    </dependency>
    <!-- JSP标准标签库 -->
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>${jstl.version}</version>
    </dependency>
    <!-- log -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>${log4j.version}</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-api</artifactId>
        <version>${slf4j.version}</version>
    </dependency>
    <dependency>
        <groupId>org.slf4j</groupId>
        <artifactId>slf4j-log4j12</artifactId>
        <version>${slf4j.version}</version>
    </dependency>
    <!-- MyBatis3.4.5 -->
    <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>
    <!-- 数据源 -->
    <dependency>
        <groupId>c3p0</groupId>
        <artifactId>c3p0</artifactId>
        <version>${c3p0.version}</version>
        <type>jar</type>
        <scope>compile</scope>
    </dependency>
</dependencies>

web.xml配置servlet、filter等

<!DOCTYPE web-app PUBLIC
        "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
        "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app version="2.5"
        xmlns="http://java.sun.com/xml/ns/javaee"
        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
        xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
            http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">

<display-name>Archetype Created Web Application</display-name>

    <!-- 配置前端控制器：服务器启动必须加载，需要加载spring-mvc.xml配置文件 -->
    <servlet>
        <servlet-name>dispatcherServlet</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <!-- 配置初始化参数，创建完DispatcherServlet对象，加载spring-mvc.xml配置文件 -->
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <!-- 服务器启动的时候，让DispatcherServlet对象创建 -->
        <load-on-startup>1</load-on-startup>
    </servlet>

    <servlet-mapping>
        <servlet-name>dispatcherServlet</servlet-name>
        <url-pattern>/</url-pattern>
    </servlet-mapping>

    <!-- 配置解决中文乱码的过滤器 -->
    <filter>
        <filter-name>characterEncodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>characterEncodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

    <!-- 配置Spring的监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>

    <!-- 配置加载类路径的配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-context.xml</param-value>
    </context-param>


</web-app>

dbconfig.properties数据相关

jdbc.url=jdbc:mysql://localhost:3306/ssm_project
jdbc.driver=com.mysql.jdbc.Driver
jdbc.username=root
jdbc.password=root


# 通用Mapper固定配置
mapper.plugin=tk.mybatis.mapper.generator.MapperPlugin
mapper.Mapper=tk.mybatis.mapper.common.Mapper
mapper.forceAnnotation=true

# 生成文件保存位置
#javabean生成位置
targetModelPackage=com.yoyling.domain
#xml映射文件的位置，这里的值是文件夹名字
targetXMLPackage=mapper
# 这里写的是mapper文件夹所在位置，写成src/main/resources
targetResourcesProject=src/main/resources/com/yoyling/

#dao接口存放的包位置
targetMapperPackage=com.yoyling.mapper
#目标工程，写main下的src即可
targetJavaProject=src/main/java

log4j.properties日志

我配置到的是DEBUG级别，并只保存到c的log4j.log，不在控制台打印。

# Set root category priority to INFO and its only appender to CONSOLE.
#log4j.rootCategory=INFO, CONSOLE            debug   info   warn error fatal
log4j.rootCategory=DEBUG, LOGFILE

# Set the enterprise logger category to FATAL and its only appender to CONSOLE.
log4j.logger.org.apache.axis.enterprise=FATAL, CONSOLE

# CONSOLE is set to be a ConsoleAppender using a PatternLayout.
log4j.appender.CONSOLE=org.apache.log4j.ConsoleAppender
log4j.appender.CONSOLE.layout=org.apache.log4j.PatternLayout
log4j.appender.CONSOLE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

# LOGFILE is set to be a File appender using a PatternLayout.
log4j.appender.LOGFILE=org.apache.log4j.FileAppender
log4j.appender.LOGFILE.File=c:\log4j.log
log4j.appender.LOGFILE.Append=true
log4j.appender.LOGFILE.layout=org.apache.log4j.PatternLayout
log4j.appender.LOGFILE.layout.ConversionPattern=%d{ISO8601} %-6r [%15.15t] %-5p %30.30c %x - %m\n

mybatis-generator.xml
这文件可配可不配，自动生成一些mapper和pojo，那我就不配了吧，手写代码。

spring-context.xml主配置

<?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: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.xsd
            http://www.springframework.org/schema/context
            http://www.springframework.org/schema/context/spring-context.xsd
            http://www.springframework.org/schema/aop
            http://www.springframework.org/schema/aop/spring-aop.xsd
            http://www.springframework.org/schema/tx
            http://www.springframework.org/schema/tx/spring-tx.xsd">

    <!-- 开启注解扫描，要扫描的是service和dao层的注解，要忽略web层注解，因为web层让SpringMVC框架去管理 -->
    <context:component-scan base-package="com.yoyling">
        <!-- 配置要忽略的注解 -->
        <context:exclude-filter type="annotation" expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 配置C3P0的连接池对象 -->
    <context:property-placeholder location="classpath:dbconfig.properties"/>
    <bean id="dataSource" class="org.springframework.jdbc.datasource.DriverManagerDataSource">
        <property name="driverClassName" value="${jdbc.driver}"/>
        <property name="url" value="${jdbc.url}"/>
        <property name="username" value="${jdbc.username}"/>
        <property name="password" value="${jdbc.password}"/>
    </bean>
    <!-- 配置SqlSession的工厂 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
    </bean>
    <!-- 配置扫描mapper的包 -->
    <bean id="mapperScanner" class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.yoyling.mapper"/>
    </bean>
</beans>

spring-mvc.xml主配置

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

    <!-- 扫描controller的注解，别的不扫描 -->
    <context:component-scan base-package="com.yoyling">
        <context:include-filter type="annotation"
                expression="org.springframework.stereotype.Controller"/>
    </context:component-scan>

    <!-- 配置视图解析器 -->
    <bean id="viewResolver"
            class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <!-- JSP文件所在的目录 -->
        <property name="prefix" value="/WEB-INF/pages/" />
        <!-- 文件的后缀名 -->
        <property name="suffix" value=".jsp" />
    </bean>

    <!-- 设置静态资源不过滤 -->
    <mvc:resources location="/css/" mapping="/css/**" />
    <mvc:resources location="/images/" mapping="/images/**" />
    <mvc:resources location="/js/" mapping="/js/**" />

    <!-- 开启对SpringMVC注解的支持 -->
    <mvc:annotation-driven />
</beans>

Score.java实体类

package com.yoyling.domain;
import java.io.Serializable;
public class Score implements Serializable {
    private Integer scoreId;
    private String xh;
    private String kch;
    private Integer cj;
    private Float jd;
    private Float xf;
    private static final long serialVersionUID = 1L;

    public Integer getScoreId() {return scoreId;}
    public void setScoreId(Integer scoreId) {this.scoreId = scoreId;}
    public String getXh() {return xh;}
    public void setXh(String xh) {this.xh = xh == null ? null : xh.trim();}
    public String getKch() {return kch;}
    public void setKch(String kch) {this.kch = kch == null ? null : kch.trim();}
    public Integer getCj() {return cj;}
    public void setCj(Integer cj) {this.cj = cj;}
    public Float getJd() {return jd;}
    public void setJd(Float jd) {this.jd = jd;}
    public Float getXf() {return xf;}
    public void setXf(Float xf) {this.xf = xf;}

    @Override
    public String toString() {
        return "Score{" +
                "scoreId=" + scoreId +
                ", xh='" + xh + '\'' +
                ", kch='" + kch + '\'' +
                ", cj=" + cj +
                ", jd=" + jd +
                ", xf=" + xf +
                '}';
    }
}

ScoreMapper.java数据层接口

package com.yoyling.mapper;

import com.yoyling.domain.Score;
import org.springframework.stereotype.Repository;

@Repository
public interface ScoreMapper {
    Score selectByPrimaryKey(Integer scoreId);
}

ScoreMapper.xml动态sql

<?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.yoyling.mapper.ScoreMapper">
  <resultMap id="BaseResultMap" type="com.yoyling.domain.Score">
    <id column="score_id" jdbcType="INTEGER" property="scoreId" />
    <result column="xh" jdbcType="VARCHAR" property="xh" />
    <result column="kch" jdbcType="VARCHAR" property="kch" />
    <result column="cj" jdbcType="INTEGER" property="cj" />
    <result column="jd" jdbcType="REAL" property="jd" />
    <result column="xf" jdbcType="REAL" property="xf" />
  </resultMap>
  <sql id="Base_Column_List">
    score_id, xh, kch, cj, jd, xf
  </sql>
  <select id="selectByPrimaryKey" parameterType="java.lang.Integer" resultMap="BaseResultMap">
    select 
    <include refid="Base_Column_List" />
    from score
    where score_id = #{scoreId,jdbcType=INTEGER}
  </select>
</mapper>

ScoreService.java服务层接口

package com.yoyling.service;

import com.yoyling.domain.Score;

public interface ScoreService {
    Score selectByPrimaryKey(Integer scoreId);
}

ScoreServiceImpl.java实现

package com.yoyling.service.impl;

import com.yoyling.domain.Score;
import com.yoyling.mapper.ScoreMapper;
import com.yoyling.service.ScoreService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

@Service("scoreService")
public class ScoreServiceImpl implements ScoreService {
    
    @Autowired
    private ScoreMapper scoreMapper;

    @Override
    public Score selectByPrimaryKey(Integer scoreId) {
        return scoreMapper.selectByPrimaryKey(1);
    }
}

ServiceTest.java后端测试

package com.yoyling;

import com.yoyling.domain.Score;
import com.yoyling.service.ScoreService;
import org.junit.Test;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;

public class ServiceTest {
    @Test
    public void run1() {
        ApplicationContext ac = new
                ClassPathXmlApplicationContext("classpath:spring-context.xml");
        ScoreService scoreService = (ScoreService) ac.getBean("scoreService");
        Score score = scoreService.selectByPrimaryKey(1);
        System.out.println(score);
    }
}

ScoreController.java前端测试

package com.yoyling.controller;

import com.yoyling.domain.Score;
import com.yoyling.service.ScoreService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;

@Controller
@RequestMapping("/score")
public class ScoreController {

    @Autowired
    private ScoreService scoreService;


    @RequestMapping("/selectByPrimaryKey")
    public String selectByPrimaryKey(Model model) {
        Score score= scoreService.selectByPrimaryKey(1);
        model.addAttribute("score",score);
        return "demo";
    }

}

index.jsp

<a href="score/selectByPrimaryKey">Test</a>

demo.jsp

${score}

本文由 RawChen 发表， 最后编辑时间为：2020-12-01 09:13
如果你觉得我的文章不错，不妨鼓励我继续写作。

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