spring framework Ioc容器
spring mvc web项目 mybatis orm持久层框架 ssm 整合---------------------------------------------------------------1、maven web项目 src main java 类源码路径 resources 资源配置文件 webapp img css js WEB-INF web.xml web项目的配置文件 index.jsp 项目首页 test java 测试源码路径 pom.xml 项目配置文件2、pom.xml 文件内容如下
<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.fz</groupId> <artifactId>ssm</artifactId> <packaging>war</packaging> <version>1.0</version> <name>ssm</name> <url>http://maven.apache.org</url> <properties> <java-version>1.8</java-version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <spring.version>4.3.6.RELEASE</spring.version> <mybatis.version>3.4.2</mybatis.version> </properties> <dependencies> <dependency> <groupId>junit</groupId> <artifactId>junit</artifactId> <version>4.12</version> <scope>test</scope> </dependency><!-- web servlet -->
<dependency> <groupId>javax.servlet</groupId> <artifactId>javax.servlet-api</artifactId> <version>3.1.0</version> <scope>provided</scope> </dependency><dependency>
<groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency><!-- spring -->
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</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-tx</artifactId> <version>${spring.version}</version> </dependency><!-- lombok -->
<dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <version>1.16.14</version> <scope>provided</scope> </dependency><!-- springmvc -->
<dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency><!-- mybatis核心包 -->
<dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis</artifactId> <version>${mybatis.version}</version> </dependency> <!-- mybatis/spring包 --> <dependency> <groupId>org.mybatis</groupId> <artifactId>mybatis-spring</artifactId> <version>1.3.1</version> </dependency><!-- 导入dbcp的jar包，beans.xml中配置数据库 -->
<dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>1.4</version> </dependency> <!-- 导入Mysql数据库链接jar包 --> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>5.1.40</version> </dependency><!-- springmvc 文件上传jar包 -->
<dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.3.2</version> </dependency></dependencies>
<build> <finalName>${project.artifactId}</finalName> <sourceDirectory>src/main/java</sourceDirectory> <testSourceDirectory>src/test/java</testSourceDirectory> <resources> <resource> <directory>src/main/java</directory> <includes> <include>**/*.xml</include> <include>**/*.properties</include> </includes> </resource> <resource> <directory>src/main/resources</directory> <includes> <include>**/*.xml</include> <include>**/*.properties</include> </includes> </resource> </resources> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <version>3.3</version> <configuration> <source>${java-version}</source> <target>${java-version}</target> <encoding>${project.build.sourceEncoding}</encoding> </configuration> </plugin><plugin>
<groupId>org.apache.maven.plugins</groupId> <artifactId>maven-war-plugin</artifactId> <version>3.0.0</version> <configuration> <!--将类文件打成jar包--> <archiveClasses>false</archiveClasses> <!--将资源文件打到classes目录下--> <webResources> <resource> <directory>src/main/resources</directory> <targetPath>WEB-INF/classes</targetPath> <filtering>true</filtering> </resource> </webResources> </configuration> </plugin><!-- tomcat plugin -->
<plugin> <groupId>org.apache.tomcat.maven</groupId> <artifactId>tomcat7-maven-plugin</artifactId> <version>2.2</version> <configuration> <url>http://localhost:80/manager/text</url> <!-- tomcat管理路径 --> <server>tomcat7</server> <!-- 与settings.xml文件中Server的id相同 --> <uriEncoding>utf-8</uriEncoding> <port>80</port><!--服务器端口号80可以省去--> <path>/</path> <!-- 应用的部署位置 --> <contextReloadable>true</contextReloadable> <systemProperties> <java.util.logging.SimpleFormatter.format>[%4$s] %1$tF %1$tT %3$s %5$s %n </java.util.logging.SimpleFormatter.format> </systemProperties> </configuration> <executions> <execution> <id>tomcat-run</id> <phase>test</phase> <goals> <goal>run</goal> </goals> </execution> </executions> </plugin> </plugins> </build></project>3、数据库名称及表结构代码
CREATE DATABASE db DEFAULT CHARACTER SET utf8; use db; CREATE TABLE `student` ( `id` int(10) unsigned NOT NULL AUTO_INCREMENT, `name` varchar(20) DEFAULT NULL, `address` varchar(50) DEFAULT NULL, PRIMARY KEY (`id`) )ENGINE=InnoDB AUTO_INCREMENT=26 DEFAULT CHARSET=utf8;mysql> select * from student;
+----+-----------+-----------------+ | id | name | address | +----+-----------+-----------------+ | 4 | 张三丰 | 郑州市 | | 6 | 李四 | 北京市 | | 22 | 李四六 | 郑州文化路 | | 23 | 赵七 | 北京 | | 24 | jack | USA | | 25 | Andy | UK | +----+-----------+-----------------+4、src/main/resources 目录下 db.properties jdbc配置文件 #jdbc 参数 db.driver=com.mysql.jdbc.Driver db.url=jdbc:mysql://localhost:3306/db?useUnicode=true&characterEncoding=utf8&useSSL=true db.user=root db.pass= #dbcp 数据库连接池配置参数 #定义初始连接数 db.initialSize=0 #定义最大连接数 db.maxActive=20 #定义最大空闲 db.maxIdle=20 #定义最小空闲 db.minIdle=1 #定义最长等待时间 db.maxWait=60000 springmvc.xml springmvc配置文件 <?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:mvc="http://www.springframework.org/schema/mvc" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-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/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsd"> <mvc:annotation-driven> <mvc:message-converters register-defaults="true"> <bean class="org.springframework.http.converter.StringHttpMessageConverter"> <property name="supportedMediaTypes" value="text/html;charset=UTF-8"/> </bean> </mvc:message-converters> </mvc:annotation-driven><!-- 配置自动扫描的包 -->
<context:component-scan base-package="com.controller" /><!-- 访问静态资源 -->
<mvc:resources mapping="/img/**" location="/img/" cache-period="2592000"/> <mvc:resources mapping="/css/**" location="/css/" cache-period="2592000"/> <mvc:resources mapping="/css/**" location="/js/" cache-period="2592000"/><!-- spring mvc 文件上传支持 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"> <!-- 104857600 代表100MB --> <property name="maxUploadSize" value="104857600" /> <property name="maxInMemorySize" value="40960" /> <property name="defaultEncoding" value="UTF-8"></property> </bean><!-- 配置视图解析器 如何把handler 方法返回值解析为实际的物理视图 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"></property> <property name="suffix" value=".jsp"></property> </bean> </beans> beans.xml spring 配置文件 <?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-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:component-scan base-package="com.entity"/>
<!-- 引入jdbc配置文件db.properties --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="location" value="classpath:db.properties"/> </bean><!-- 使用spring jdbc中的类建立数据源 -->
<bean id="ds" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="${db.driver}"/> <property name="url" value="${db.url}"/> <property name="username" value="${db.user}"/> <property name="password" value="${db.pass}"/> <!-- 初始化连接大小 --> <property name="initialSize" value="${db.initialSize}"/> <!-- 连接池最大数量 --> <property name="maxActive" value="${db.maxActive}"/> <!-- 连接池最大空闲 --> <property name="maxIdle" value="${db.maxIdle}"/> <!-- 连接池最小空闲 --> <property name="minIdle" value="${db.minIdle}"/> <!-- 获取连接最大等待时间 --> <property name="maxWait" value="${db.maxWait}"/> </bean> <!-- SqlSessionFactory --> <bean id="sf" class="org.mybatis.spring.SqlSessionFactoryBean"> <property name="dataSource" ref="ds"/> <!-- com.entity.Student 可以写 sutdent --> <property name="typeAliasesPackage" value="com.entity"/> <property name="mapperLocations" value="classpath:com/entity/mapper/*Mapper.xml"/> </bean> <!-- SqlSession --> <bean id="session" class="org.mybatis.spring.SqlSessionTemplate"> <constructor-arg index="0" ref="sf"/> </bean><!--创建数据映射器，数据映射器必须为接口 -->
<!-- <bean id="ssm" class="org.mybatis.spring.mapper.MapperFactoryBean"> <property name="mapperInterface" value="com.entity.mapper.StudentMapper" /> <property name="sqlSessionFactory" ref="sf" /> </bean> --><!-- 扫描mapper包 自动在spring中生成 xxxxMapper bean -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"> <property name="basePackage" value="com.entity.mapper"/> <property name="sqlSessionFactoryBeanName" value="sf"/> </bean><bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="ds"/> </bean><bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="ds"/> </bean><tx:annotation-driven transaction-manager="transactionManager"/>
</beans>5、web项目的配置文件 /src/main/webapp/WEB-INF/web.xml 文件
<?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"> <display-name>ssm</display-name><!-- Spring和mybatis的配置文件 -->
<context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:beans.xml</param-value> </context-param> <!-- Spring监听器 --> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener><!-- 防止Spring内存溢出监听器 -->
<listener> <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class> </listener><!-- spring 编码过滤器 -->
<filter> <filter-name>encodingFilter</filter-name> <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class> <async-supported>true</async-supported> <init-param> <param-name>encoding</param-name> <param-value>UTF-8</param-value> </init-param> </filter> <filter-mapping> <filter-name>encodingFilter</filter-name> <url-pattern>/*</url-pattern> </filter-mapping><!-- Spring MVC -->
<servlet> <servlet-name>SpringMVC</servlet-name> <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class> <init-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:springmvc.xml</param-value> </init-param> <load-on-startup>1</load-on-startup> <async-supported>true</async-supported> </servlet> <servlet-mapping> <servlet-name>SpringMVC</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping><welcome-file-list>
<welcome-file>index.html</welcome-file> <welcome-file>index.jsp</welcome-file> </welcome-file-list> </web-app>6、实体类编写com.entity.Student.java package com.entity; import lombok.Data; /** * Created by webrx on 2017/2/17 0017 10:52. */ @Data public class Student { private int id; private String name; private String address; }7、mybatis mapper类及mapper.xml文件 com.entity.mapper.StudentMapper.java 接口 Serverice DAO impl package com.entity.mapper; import com.entity.Student; import org.apache.ibatis.annotations.Insert; import java.util.List; /** * Created by webrx on 2017/2/17 0017 10:51. */ public interface StudentMapper { public List<Student> query(); public int delById(int id); @Insert("insert into student values(null,#{name},#{address})") public int insert(Student student); }com.entity.mapper.StudentMapper.xml 配置文件
<?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.entity.mapper.StudentMapper"> <select id="query" resultType="student"> select * from student </select><delete id="delById" parameterType="int">
delete from student where id = #{id} </delete> </mapper>8、编写springmvc 控制器类 使用注解方式 com.controller.Hello.java
package com.controller; import com.entity.Student; import com.entity.mapper.StudentMapper; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.servlet.ModelAndView;/**
* Created by webrx on 2017/2/17 0017 10:46. */ @Controller public class Hello { @Autowired //自动注入spring ioc 中的 studentMapper private StudentMapper studentMapper;@RequestMapping("/test")
public ModelAndView test(){ ModelAndView mv = new ModelAndView("show"); mv.addObject("student",studentMapper.query()); return mv; } @RequestMapping("/save") public String save(Student student){ studentMapper.insert(student); return "redirect:/test"; }@RequestMapping("/del")
public String del(int id){ studentMapper.delById(id); return "redirect:/test"; } }9、编写前台网页 /index.jsp springmvc视图文件 /show.jsp
/index.jsp 内容如下: <%@ page language="java" pageEncoding="utf-8" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html> <html lang="zh"> <head> <meta charset="utf-8"> <title>ssm三大框架整合方案</title> </head> <body> <a href="test">springmvc-controller-test</a> <hr> <%=request.getRemoteAddr()%> <c:forEach begin="1" end="5" step="1"> <h2>SSM三大框架整合</h2> </c:forEach> </body> </html> /show.jsp 视图文件 <%@ page language="java" pageEncoding="utf-8" %> <%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %> <!DOCTYPE html> <html lang="zh"> <head> <meta charset="utf-8"> <title>显示学生信息</title> <link rel="stylesheet" href="css/index.css"> </head> <body> <h3>添加学生信息</h3> <div> <form action="save" method="post"> 姓名: <input type="text" autofocus placeholder="姓名" name="name"><br> 家庭地址: <input type="text" name="address" placeholder="地址"><br> <input type="submit" value="提交"> </form> </div> <h3>显示学生表的信息</h3> <c:forEach items="${student}" var="st"> <div>${st.name}----<a href="del?id=${st.id}">删除</a></div> </c:forEach></body>
</html>10、运行项目测试
http://localhost/index.jsp 点击testhttp://localhost/test