目录结构

image.png

写pom.xml需要的jar包

    <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/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.hbyg</groupId>
<artifactId>AHbyg</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>AHbyg Maven Webapp</name>
<url>http://maven.apache.org</url>

<properties>

<spring.version>4.1.3.RELEASE</spring.version>

<mybatis.version>3.2.8</mybatis.version>

<slf4j.version>1.6.4</slf4j.version>
<log4j.version>1.2.17</log4j.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.10</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>1.2.17</version>
</dependency>

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

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

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

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

    <dependency>
        <groupId>org.springframework</groupId>
        <artifactId>spring-test</artifactId>
        <version>${spring.version}</version>
    </dependency>
    <!-- mybatis核心包 -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis</artifactId>
        <version>${mybatis.version}</version>
    </dependency>
    <!-- mybatis/spring包 -->
    <dependency>
        <groupId>org.mybatis</groupId>
        <artifactId>mybatis-spring</artifactId>
        <version>1.2.2</version>
    </dependency>
    <!-- 导入java ee jar 包 -->
    <dependency>
        <groupId>javax</groupId>
        <artifactId>javaee-api</artifactId>
        <version>7.0</version>
    </dependency>

<!-- 导入Mysql数据库链接jar包 -->
    <dependency>
        <groupId>mysql</groupId>
        <artifactId>mysql-connector-java</artifactId>
        <version>5.1.30</version>
    </dependency>
    <!-- 导入dbcp的jar包，用来在applicationContext.xml中配置数据库 -->
    <dependency>
        <groupId>commons-dbcp</groupId>
        <artifactId>commons-dbcp</artifactId>
        <version>1.2.2</version>
    </dependency>
    <!-- JSTL标签类 -->
    <dependency>
        <groupId>jstl</groupId>
        <artifactId>jstl</artifactId>
        <version>1.2</version>
    </dependency>
    <!-- 日志文件管理包 -->
    <!-- log start -->
    <dependency>
        <groupId>log4j</groupId>
        <artifactId>log4j</artifactId>
        <version>${log4j.version}</version>
    </dependency>


    <!-- 格式化对象，方便输出日志 -->
    <dependency>
        <groupId>com.alibaba</groupId>
        <artifactId>fastjson</artifactId>
        <version>1.1.41</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>
    <!-- log end -->
    <!-- 映入JSON -->
    <dependency>
        <groupId>org.codehaus.jackson</groupId>
        <artifactId>jackson-mapper-asl</artifactId>
        <version>1.9.13</version>
    </dependency>
    <!-- 上传组件包 -->
    <dependency>
        <groupId>commons-fileupload</groupId>
        <artifactId>commons-fileupload</artifactId>
        <version>1.3.1</version>
    </dependency>
    <dependency>
        <groupId>commons-io</groupId>
        <artifactId>commons-io</artifactId>
        <version>2.4</version>
    </dependency>
    <dependency>
        <groupId>commons-codec</groupId>
        <artifactId>commons-codec</artifactId>
        <version>1.9</version>
    </dependency>

</dependencies>
<build>
<finalName>AHbyg</finalName>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
</build>
</project>

配置Spring-mvc.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<context:component-scan base-package="com.hbyg.controller" />

<!-- 启动SpringMVC的注解功能，完成请求和注解POJO的映射 -->
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerMapping"/>
<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
</bean>

<!-- 定义跳转的文件的前后缀 ，视图模式配置-->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">  
  <property name="prefix" value="/pages/" />  
  <property name="suffix" value=".jsp" />  
</bean>

</beans>

配置Spring-Mybatis.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:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.1.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.1.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd">

<context:component-scan base-package="com.hbyg"/>

<bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:jdbc.properties"/>
</bean>

<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close">
<property name="driverClassName" value="{url}" />
<property name="username" value="{password}" />

<property name="initialSize" value="{maxActive}"></property>

<property name="maxIdle" value="{minIdle}"></property>

<property name="maxWait" value="${maxWait}"></property>
</bean>

<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource" />

<property name="mapperLocations" value="classpath:/conf/mapper/*.xml"></property>
</bean>

<!-- DAO接口所在包名，Spring会自动查找其下的类 -->  
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">  
    <property name="basePackage" value="com.hbyg.dao" />  
    <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>  
</bean>

<!-- (事务管理)transaction manager, use JtaTransactionManager for global tx --> 
<bean id="transactionManager"  
    class="org.springframework.jdbc.datasource.DataSourceTransactionManager">  
    <property name="dataSource" ref="dataSource" />  
</bean>

</beans>

jdbc.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/five_test?characterEncoding=utf-8
username=root
password=root

initialSize=0

maxActive=20

maxIdle=20

minIdle=1

maxWait=60000

Controller

package com.hbyg.controller;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;

import com.hbyg.pojo.DepartInfo;
import com.hbyg.service.departService;

@Controller
public class getDepController {

@Autowired
departService servicee;

@RequestMapping("/getDep")
public String getDepart(@RequestParam(value="id" )Integer id,Model model){
     DepartInfo t=servicee.getDepart(id);
     System.out.println("查询出来的值"+t);
     model.addAttribute("departinfo", t);
    return "success";
}

}

Service

package com.hbyg.service;

import org.apache.ibatis.session.SqlSessionFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.hbyg.dao.DeparDao;
import com.hbyg.pojo.DepartInfo;

@Service
public class departService {
/@Autowired
private SqlSessionFactory factory;/
@Autowired
private DeparDao depdao;
public void hahah(){

}
public DepartInfo getDepart(int id) {
    
    return depdao.getDepartById(id);
}

}

mapper.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.hbyg.dao.DeparDao">

<resultMap type="com.hbyg.pojo.DepartInfo" id="departMap">
<id property="DEP_ID" column="DEP_ID"/>
<result property="DEP_NAME" column="DEP_NAME"/>
<result property="DEP_DESC" column="DEP_DESC"/>
<result property="DEP_STATE" column="DEP_STATE"/>
</resultMap>

<select id="getDepartById" resultMap="departMap">
select * from depart_info where DEP_ID=#{id}
</select>
</mapper>

dao

package com.hbyg.dao;

import com.hbyg.pojo.DepartInfo;

public interface DeparDao {
public DepartInfo getDepartById(int id);
}

pojo

package com.hbyg.pojo;

public class DepartInfo {

private Integer DEP_ID;
private String DEP_NAME;
private String DEP_DESC;
private String DEP_STATE;

public Integer getDEP_ID() {
    return DEP_ID;
}
public void setDEP_ID(Integer dEP_ID) {
    DEP_ID = dEP_ID;
}
public String getDEP_NAME() {
    return DEP_NAME;
}
public void setDEP_NAME(String dEP_NAME) {
    DEP_NAME = dEP_NAME;
}
public String getDEP_DESC() {
    return DEP_DESC;
}
public void setDEP_DESC(String dEP_DESC) {
    DEP_DESC = dEP_DESC;
}
public String getDEP_STATE() {
    return DEP_STATE;
}
public void setDEP_STATE(String dEP_STATE) {
    DEP_STATE = dEP_STATE;
}
@Override
public String toString() {
    return "DepartInfo [DEP_ID=" + DEP_ID + ", DEP_NAME=" + DEP_NAME + ", DEP_DESC=" + DEP_DESC + ", DEP_STATE="
            + DEP_STATE + "]";
}

}