SSM框架搭建（一） JDK和MAVEN环境搭建

SSM框架搭建（二）创建MAVEN项目

SSM框架搭建（三）数据库创建和MyBatis生成器自动生成实体类、DAO接口和Mapping映射文件

SSM框架搭建（四） springmvc和mybatis的配置

一：maven引入jar包，配置pox.xml

<projectxmlns="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>maimai.yourMvc</groupId><artifactId>yourMvc</artifactId><packaging>war</packaging><version>0.0.1-SNAPSHOT</version><name>yourMvc Maven Webapp</name><url>http://maven.apache.org</url><properties><!-- spring版本号 --><spring.version>4.0.2.RELEASE</spring.version><!-- mybatis版本号 --><mybatis.version>3.2.6</mybatis.version><!-- log4j日志文件管理包版本 --><slf4j.version>1.7.7</slf4j.version><log4j.version>1.2.17</log4j.version></properties><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>4.10</version><!-- 表示开发的时候引入，发布的时候不会加载此包 --><scope>test</scope></dependency><!-- spring核心包 --><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><dependency><groupId>org.hamcrest</groupId><artifactId>hamcrest-core</artifactId><version>1.3.RC2</version></dependency><dependency><groupId>org.hamcrest</groupId><artifactId>hamcrest-library</artifactId><version>1.3.RC2</version></dependency><dependency><groupId>commons-logging</groupId><artifactId>commons-logging</artifactId><version>1.1.3</version></dependency></dependencies><build><finalName>yourMvc</finalName></build>
</project>

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二：在resources下面创建下面配置文件

jdbc.properties

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://127.0.0.1:3306/maimai
username=maimai
password=123456
#定义初始连接数  
initialSize=0
#定义最大连接数  
maxActive=20 
#定义最大空闲  
maxIdle=20
#定义最小空闲  
minIdle=1
#定义最长等待时间  
maxWait=60000

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log4j.properties

#定义LOG输出级别  
log4j.rootLogger=INFO,Console,File  
#定义日志输出目的地为控制台  
log4j.appender.Console=org.apache.log4j.ConsoleAppender  
log4j.appender.Console.Target=System.out  
#可以灵活地指定日志输出格式，下面一行是指定具体的格式  
log4j.appender.Console.layout = org.apache.log4j.PatternLayout  
log4j.appender.Console.layout.ConversionPattern=[%c] - %m%n  #文件大小到达指定尺寸的时候产生一个新的文件  
log4j.appender.File = org.apache.log4j.RollingFileAppender  
#指定输出目录  
log4j.appender.File.File = logs/ssm.log  
#定义文件最大大小  
log4j.appender.File.MaxFileSize = 10MB  
# 输出所以日志，如果换成DEBUG表示输出DEBUG以上级别日志  
log4j.appender.File.Threshold = ALL  
log4j.appender.File.layout = org.apache.log4j.PatternLayout  
log4j.appender.File.layout.ConversionPattern =[%p] [%d{yyyy-MM-dd HH\:mm\:ss}][%c]%m%n

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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">  <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->  <context:component-scan base-package="com.maimai.controller" />  <!--避免IE执行AJAX时，返回JSON出现下载文件 -->  <bean id="mappingJacksonHttpMessageConverter"  class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">  <property name="supportedMediaTypes">  <list>  <value>text/html;charset=UTF-8</value>  </list>  </property>  </bean>  <!-- 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.annotation.AnnotationMethodHandlerAdapter">  <property name="messageConverters">  <list>  <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->  </list>  </property>  </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">  <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->  <property name="prefix" value="/WEB-INF/jsp/" />  <property name="suffix" value=".jsp" />  </bean>  <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->  <bean id="multipartResolver"    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    <!-- 默认编码 -->  <property name="defaultEncoding" value="utf-8" />    <!-- 文件大小最大值 -->  <property name="maxUploadSize" value="10485760000" />    <!-- 内存中的最大值 -->  <property name="maxInMemorySize" value="40960" />    </bean>   </beans>

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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">  <!-- 自动扫描该包，使SpringMVC认为包下用了@controller注解的类是控制器 -->  <context:component-scan base-package="com.maimai.controller" />  <!--避免IE执行AJAX时，返回JSON出现下载文件 -->  <bean id="mappingJacksonHttpMessageConverter"  class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">  <property name="supportedMediaTypes">  <list>  <value>text/html;charset=UTF-8</value>  </list>  </property>  </bean>  <!-- 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.annotation.AnnotationMethodHandlerAdapter">  <property name="messageConverters">  <list>  <ref bean="mappingJacksonHttpMessageConverter" /> <!-- JSON转换器 -->  </list>  </property>  </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">  <!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀，变成一个 可用的url地址 -->  <property name="prefix" value="/WEB-INF/jsp/" />  <property name="suffix" value=".jsp" />  </bean>  <!-- 配置文件上传，如果没有使用文件上传可以不用配置，当然如果不配，那么配置文件中也不必引入上传组件包 -->  <bean id="multipartResolver"    class="org.springframework.web.multipart.commons.CommonsMultipartResolver">    <!-- 默认编码 -->  <property name="defaultEncoding" value="utf-8" />    <!-- 文件大小最大值 -->  <property name="maxUploadSize" value="10485760000" />    <!-- 内存中的最大值 -->  <property name="maxInMemorySize" value="40960" />    </bean>   </beans>

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配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-appversion="3.0"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_3_0.xsd"metadata-complete="true"><display-name>Archetype Created Web Application</display-name><!-- Spring和mybatis的配置文件 --><context-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-mybatis.xml</param-value></context-param><!-- 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 MVC servlet --><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:spring-mvc.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><!-- 此处可以可以配置成*.do，对应struts的后缀习惯 --><url-pattern>/</url-pattern></servlet-mapping><welcome-file-list><welcome-file>/index.jsp</welcome-file></welcome-file-list>
</web-app>

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下面的工作就是创建数据接口的服务类了

创建数据服务接口

com.maimai.service

IStudentService

package com.maimai.service;import com.maimai.pojo.Student;;public interface IStudentService {  public Student getStudentById(int studentId);  
}

创建数据接口实现

com.maimai.service.impl

studentServiceImpl

package com.maimai.service.impl;import javax.annotation.Resource;
import org.springframework.stereotype.Service;
import com.maimai.IDao.StudentMapper;
import com.maimai.pojo.Student;
import com.maimai.service.IStudentService;@Service("studentService")
public class studentServiceImpl implements IStudentService {@Resourceprivate StudentMapper studentDao;@Overridepublic Student getStudentById(int studentId) {return this.studentDao.selectByPrimaryKey(studentId);}}

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数据接口创建完毕，接下来就改MVC登场了

创建controller

com.maimai.controller

StudentController

package com.maimai.controller;import javax.annotation.Resource;
import javax.servlet.http.HttpServletRequest;import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;import com.maimai.pojo.Student;
import com.maimai.service.IStudentService;@Controller  
@RequestMapping("/student")  
public class StudentController {  @Resource  private IStudentService studentService;  @RequestMapping("/studentView")  public String toIndex(HttpServletRequest request,Model model){  int studentId = Integer.parseInt(request.getParameter("id"));  Student user = this.studentService.getStudentById(studentId);  model.addAttribute("student", user);  return "studentView";  }  
}

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创建View

<%@ page language="java" isELIgnored="false" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>student</title>
</head>
<body>
${student.id}---${student.userName}---${student.password}--${student.age}
</body>
</html>

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注意 isELIgnored="false" ，要不表达式不解析

测试，看到结果，成功