使用idea開發工具，整合spring+springmvc+mybatis
阿新 • • 發佈：2019-01-02
一、建立一個maven的web專案
二、整合spring和springmvc
1.在已經生成的pom檔案中新增
<properties> <org.springframework.version>4.1.6.RELEASE</org.springframework.version> </properties> <dependencies> <!-- spring --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${org.springframework.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${org.springframework.version}</version> </dependency> </dependencies>
2.建立applicationContext.xml檔案
<?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:task="http://www.springframework.org/schema/task" 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/task http://www.springframework.org/schema/task/spring-task.xsd"> </beans>
3.建立springMvc.xml檔案，並配置
4.配置web.xml檔案<?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" 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"> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/WEB-INF/pages/"/> <property name="suffix" value=".jsp"/> </bean> <mvc:annotation-driven> <mvc:message-converters> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="supportedMediaTypes"> <list> <value>text/plain;charset=UTF-8</value> <value>text/html;charset=UTF-8</value> </list> </property> </bean> </mvc:message-converters> </mvc:annotation-driven> </beans>
<!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>
<display-name>Archetype Created Web Application</display-name>
<filter>
<filter-name>encodingFilter</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>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<servlet>
<servlet-name>ssmTest</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:springMvc.xml;classpath*:/applicationContext.xml</param-value>
</init-param>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>ssmTest</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
</web-app>5.建立Controller
package com.test.controller;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
@Controller
@RequestMapping("/")
public class IndexController {
@RequestMapping("index")
public String toIndex(){
return "index";
}
}注：把controller所在的包，配置到springMvc掃描標籤中
6.在WEB-INF/pages/下建立 index.jsp檢視（省略）
7.修改springMvc.xml檔案，新增掃描包
<context:component-scan base-package="com.test.controller"/>8.測試，訪問：http://localhost:8080/index
遇到的問題：
1、archetypeCatalog=internal，在建立專案的時候，有一步需要新增這個鍵值對，否則構建maven專案會很慢
2、建立好的專案可能會沒有resources系統目錄，可手動新增該資料夾，然後在 File-Project Structure中，選擇Modules中設定成resources
3、配置檔案、controller等寫好後，需要clean、package才能生成部署包
4、在配置Tomcat的時候，在Deployment一項，需要選擇package生成的部署包，才能執行
三、整合mybatis
1.pom檔案新增
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.4.1</version>
</dependency>
<!-- mysql-jdbc -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.38</version>
</dependency>
<!--mybatis-spring整合包，這樣就可以通過spring配置bean的方式進行mybatis配置了，不然需要單獨使用mybatis的配置-->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.3.1</version>
</dependency>
<!-- 匯入dbcp的jar包，用來在spring-mybatis.xml中配置資料庫 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>2.在resources下建立資料夾config和資料庫配置檔案jdbc.properties（資料庫自己建，配置根據實際情況修改）
#資料庫連線配置
jdbc.driver=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/smoke_detector
jdbc.username=root
jdbc.password=root
#connection pool settings
#定義最小空閒
jdbc.pool.minIdle=1
#定義最大空閒
jdbc.pool.maxIdle=20
#定義最大連線數
jdbc.pool.maxActive=20
#定義最長等待時間
jdbc.pool.maxWait=600003.在 applicationContext.xml中新增
<!-- jdbc.properties裡面的值，會在mybatis的資料來源中用到，多個檔案放在list標籤中 -->
<bean id="propertyConfigurer"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<!--
<property name="location">
<value>classpath:config/conf.properties</value>
</property>
-->
<property name="locations">
<list>
<value>classpath:config/jdbc.properties</value>
</list>
</property>
</bean>
<!-- 使用註解式注入 -->
<context:annotation-config />
<!-- 匯入資料庫配置 -->
<import resource="spring-mybatis.xml" />4.建立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"
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/cache http://www.springframework.org/schema/cache/spring-cache.xsd">
<!--資料來源配置，${}裡面的值在application-context中載入了-->
<bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource">
<property name="driverClassName" value="${jdbc.driver}"/>
<property name="url" value="${jdbc.url}"/>
<property name="username" value="${jdbc.username}"/>
<property name="password" value="${jdbc.password}"/>
<property name="maxActive" value="${jdbc.pool.maxActive}"/>
<property name="maxIdle" value="${jdbc.pool.maxIdle}"/>
<property name="minIdle" value="${jdbc.pool.minIdle}"/>
<property name="maxWait" value="${jdbc.pool.maxWait}"/>
</bean>
<!--mybatis與spring的整合，不需要mybatis自己的配置對映檔案-->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!--配置連線資料庫資料來源-->
<property name="dataSource" ref="dataSource"/>
<!--配置Mapper檔案所在位置-->
<property name="mapperLocations" value="classpath*:mapper/*.xml"/>
</bean>
<!--MapperScannerConfigurer將會掃描basePackage並自動裝配-->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<!-- DAO介面所在包名，Spring會自動查詢其下的類 -->
<property name="basePackage" value="com.test.dao.mapper"/>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"/>
</bean>
<!-- 事務管理 -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
</beans>5.建立實體物件Test
package com.test.entity;
public class Test {
private int id;
private String name;
private int age;
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public int getAge() {
return age;
}
public void setAge(int age) {
this.age = age;
}
}6.建立表的介面檔案TestMapper
package com.test.dao.mapper;
import com.test.entity.Test;
public interface TestMapper {
//新增資料
public Integer addTest(Test test);
}7.在resources目錄下，建立目錄mapper，和對映檔案TestMapper.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.test.dao.mapper.TestMapper">
<resultMap type="com.test.entity.Test" id="testResult">
<id property="id" column="id" />
<result property="name" column="name" />
<result property="age" column="age" />
</resultMap>
<insert id="addTest" parameterType="com.test.entity.Test">
insert into t_test (name,age) values(#{name},#{age})
</insert>
</mapper>注：對映檔案裡面的Mapper路徑要根據實際修改
8.建立service介面ITestService和實現類TestServiceImpl
package com.test.service;
import com.test.entity.Test;
public interface ITestService {
//新增資料
public Integer addTest(Test test);
} package com.test.service.impl;
import com.test.dao.mapper.TestMapper;
import com.test.entity.Test;
import com.test.service.ITestService;
import org.springframework.stereotype.Service;
import javax.annotation.Resource;
@Service
public class TestServiceImpl implements ITestService {
@Resource
private TestMapper testMapper;
@Override
public Integer addTest(Test test) {
testMapper.addTest(test);
return 0;
}
}注意：建立完成後把介面所在的包，配置到spring掃描標籤中
9.在包com.test.controller中新建TestController
package com.test.controller;
import com.test.entity.Test;
import com.test.service.ITestService;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import javax.annotation.Resource;
@Controller
@RequestMapping("/")
public class TestController {
@Resource
private ITestService testService;
@RequestMapping("/add")
public void add(){
Test t = new Test();
t.setName("test");
t.setAge(22);
testService.addTest(t);
}
}