SSM整合笔记
1，创建maven项目
创建maven项目过程省略
ps：如果创建完maven项目之后项目报错，可能是没有配置Tomcat
2，在pom.xml里面导入相应的jar的依赖
<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.junge</groupId><artifactId>SSM1</artifactId><packaging>war</packaging><version>0.0.1-SNAPSHOT</version><name>SSM1 Maven Webapp</name><url>http://maven.apache.org</url><dependencies><dependency><groupId>junit</groupId><artifactId>junit</artifactId><version>3.8.1</version><scope>test</scope></dependency><!-- 导入springmvc --><!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc --><dependency><groupId>org.springframework</groupId><artifactId>spring-webmvc</artifactId><version>5.0.0.RELEASE</version></dependency><!-- spring-jdbc --><!-- https://mvnrepository.com/artifact/org.springframework/spring-jdbc --><dependency><groupId>org.springframework</groupId><artifactId>spring-jdbc</artifactId><version>5.0.0.RELEASE</version></dependency><dependency><groupId>org.springframework</groupId><artifactId>spring-aspects</artifactId><version>5.0.0.RELEASE</version></dependency><!-- mybatis --><!-- https://mvnrepository.com/artifact/org.mybatis/mybatis --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis</artifactId><version>3.4.3</version></dependency><!-- 连接池commons-dbcp --><!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp --><dependency><groupId>commons-dbcp</groupId><artifactId>commons-dbcp</artifactId><version>1.4</version></dependency><!-- 数据库驱动 mysql --><!-- https://mvnrepository.com/artifact/mysql/mysql-connector-java --><dependency><groupId>mysql</groupId><artifactId>mysql-connector-java</artifactId><version>5.1.25</version></dependency><!-- mybatis-spring --><!-- https://mvnrepository.com/artifact/org.mybatis/mybatis-spring --><dependency><groupId>org.mybatis</groupId><artifactId>mybatis-spring</artifactId><version>1.3.2</version></dependency><!-- jstl --><!-- https://mvnrepository.com/artifact/jstl/jstl --><dependency><groupId>jstl</groupId><artifactId>jstl</artifactId><version>1.2</version></dependency><!-- js --><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-core --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-core</artifactId><version>2.9.4</version></dependency><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-databind --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-databind</artifactId><version>2.9.0</version></dependency><!-- https://mvnrepository.com/artifact/com.fasterxml.jackson.core/jackson-annotations --><dependency><groupId>com.fasterxml.jackson.core</groupId><artifactId>jackson-annotations</artifactId><version>2.9.0</version></dependency><!-- https://mvnrepository.com/artifact/com.google.code.gson/gson --><dependency><groupId>com.google.code.gson</groupId><artifactId>gson</artifactId><version>2.8.2</version></dependency><!-- log4j --><dependency><groupId>log4j</groupId><artifactId>log4j</artifactId><version>1.2.17</version></dependency><!-- 文件上传 --><dependency><groupId>commons-fileupload</groupId><artifactId>commons-fileupload</artifactId><version>1.3</version></dependency><!-- 引入PageHelper分页插件 --><dependency><groupId>com.github.pagehelper</groupId><artifactId>pagehelper</artifactId><version>5.1.2</version></dependency></dependencies><build><finalName>SSM1</finalName></build> </project>
3，构建基本目录
A：包目录
根据mvc分层思想，创建包目录
- action action表示控制层，用于接收请求，并返回数据或转发页面
- service service表示业务逻辑层，用于处理事务
- action接收请求后，会调用service层的函数做事务处理，代码逻辑的实现就写在service层
- dao dao表示持久层，用来写sql
- service层需要用到数据库数据时，会调用dao层的sql接口
- view view包下写实体类，就是有 set/get 函数的类。封装dao层取出来的数据为一个对象
B：后台页面目录
在src\main\webapp\WEB-INF下创建一个目录
（该目录的名字随意取，该目录下存放页面文件
WEB-INF目录是不可见的，所以其下的文件是安全的
一般来讲存放的是需要登录后才可以访问的后台管理页面）
C：静态资源目录
在src\main\webapp下创建一个目录
该目录的名字随意取，该目录下存放前端样式文件
D：默认首页
在src\main\webapp下创建一个 index.jsp 文件
4，文件配置
A：数据库
在src\main\resources目录下创建数据库连接配置文件 db.properties(new一个file)
填写配置内容
oracle、mysql、sql server，3者的写法均不同变量名可以随意取，但是要注意，不能和系统内置的变量名起冲突等号右边的内容，不要加双引号或单引号
Mysql的配置
jdbc.driver= com.mysql.jdbc.Driver;//数据库驱动 jdbc.url =jdbc:mysql://localhost:3306/blog?characterEncoding=utf-8 //数据库地址（一般写ip地址） jdbc.username = root //数据库用户名
jdbc.password =root //数据库密码jdbc.driver= com.mysql.jdbc.Driver
jdbc.url =jdbc:mysql://localhost:3306/blog?characterEncoding=utf-8
jdbc.username = root
jdbc.password =root
B：spring-mybatis
在src\main\resources目录下创建spring-mybatis整合配置文件 spring-mybatis.xml
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<?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:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"xmlns:jdbc="http://www.springframework.org/schema/jdbc"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:util="http://www.springframework.org/schema/util"xsi:schemaLocation="http://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.3.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsdhttp://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsdhttp://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.3.xsd"><!-- 引入数据库配置文件 --><!-- <util:properties id="config"></util:properties> --><context:property-placeholder location="classpath:db.properties"/><!-- 配置数据连接参数及连接池 --><bean id="dataSource"class="org.apache.commons.dbcp.BasicDataSource"destroy-method="close"><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></bean> <!-- spring 集成mybaits 所以不用配置mybatis --> <!-- 配置SqlSessionFactoryBean --> <bean id="sqlSessionFactoryBean" class="org.mybatis.spring.SqlSessionFactoryBean"><!-- 注入连接池 --><property name="dataSource" ref="dataSource"/><!-- 映射文件的位置 --><property name="mapperLocations" value="classpath:mapper/*.xml"/><!-- 分页插件pageHelper --><property name="configLocation" value="classpath:mybatis-config.xml"></property> </bean><!-- 该bean负责调用sqlsession的getMaper函数 --> <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer"><property name="basePackage" value="com.junge.dao*"/><!-- --><!-- <property name="sqlSessionFactoryBeanName" value="sqlSessionFactoryBean"></property> --> </bean> <!-- 开启事务注解驱动 --> <tx:annotation-driven/> <!-- 事务管理 --> <bean id="dataSourceTransactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"><property name="dataSource" ref="dataSource"></property> </bean></beans>
C：spring-mvc
在src\main\resources目录下创建spring-mvc整合配置文件 spring-mvc.xml
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<?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:aop="http://www.springframework.org/schema/aop"xmlns:context="http://www.springframework.org/schema/context"xmlns:jdbc="http://www.springframework.org/schema/jdbc"xmlns:mvc="http://www.springframework.org/schema/mvc"xmlns:mybatis-spring="http://mybatis.org/schema/mybatis-spring"xmlns:tx="http://www.springframework.org/schema/tx"xmlns:util="http://www.springframework.org/schema/util"xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsdhttp://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.3.xsdhttp://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.3.xsdhttp://www.springframework.org/schema/jdbc http://www.springframework.org/schema/jdbc/spring-jdbc-4.3.xsdhttp://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.3.xsdhttp://mybatis.org/schema/mybatis-spring http://mybatis.org/schema/mybatis-spring-1.2.xsdhttp://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.3.xsdhttp://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.3.xsd"><!-- 启用注解驱动 --><mvc:annotation-driven></mvc:annotation-driven><!-- 处理静态资源 --><mvc:default-servlet-handler /><!-- 开启组件扫描 --><context:component-scanbase-package="com.junge.*" /><!-- 配置视图解析器 --><beanclass="org.springframework.web.servlet.view.InternalResourceViewResolver"><property name="prefix" value="/WEB-INF/page/" /><property name="suffix" value=".jsp" /></bean><!-- 拦截器 --><mvc:interceptors><!-- 多个拦截器顺序执行登录认证拦截器 --><mvc:interceptor><mvc:mapping path="/**" /><bean class="com.junge.interceptor.Interceptor" /></mvc:interceptor></mvc:interceptors> <!--全局异常处理 只要你实现了HandelExceptionResolver接口 ， 这个类就是一个全局异常处理类 --><bean class="com.junge.exception.JExceptionResolver"></bean><!-- 文件上传 --><bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"><!-- 设置默认编码 --><property name="defaultEncoding" value="utf-8"></property><!-- 上传文件总的大小最大为5M --><property name="maxUploadSize" value="5242440"></property></bean> </beans>
D：web.xml
找到src\main\webapp\WEB-INF目录下的web.xml
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<!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><!-- 字符过滤，防止post请求乱码 --><filter><filter-name>SpringCharacterEncodingFilter</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>SpringCharacterEncodingFilter</filter-name><url-pattern>/*</url-pattern></filter-mapping><!-- spring mvc 请求响应 --><!-- The front controller of this Spring Web application, responsible for handling all application requests --><servlet><servlet-name>springDispatcherServlet</servlet-name><servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class><init-param><param-name>contextConfigLocation</param-name><param-value>classpath:spring-*.xml</param-value><!-- 这么写会自动找到之前写的 spring-mybaits文件和spring-mvc文件 --></init-param><load-on-startup>1</load-on-startup></servlet><!-- Map all requests to the DispatcherServlet for handling --><servlet-mapping><servlet-name>springDispatcherServlet</servlet-name><url-pattern>*.json</url-pattern></servlet-mapping><!-- 表示后台控制层接受。action和json结尾的请求 本项目中利用action请求转发页面 json请求转发json数据 --><servlet-mapping><servlet-name>springDispatcherServlet</servlet-name><url-pattern>*.action</url-pattern></servlet-mapping><!-- 配置静态资源文件路径 --><servlet-mapping><servlet-name>default</servlet-name><!-- 表示static目录下的文件都是静态文件 --><url-pattern>/static/*</url-pattern><!-- 不配置的话，框架会认为这些文件的路径都是请求，导致无法访问 --></servlet-mapping><!-- 配置错误页面 --><error-page><error-code>403</error-code><location>/WEB-INF/page/portal/403.jsp</location></error-page><error-page><error-code>404</error-code><location>/WEB-INF/page/portal/404.jsp</location></error-page><error-page><error-code>500</error-code><location>/WEB-INF/page/portal/500.jsp</location></error-page> </web-app>
E：mybatis-config.xml
用来分页的配置文件（pagehelper）
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN""http://mybatis.org/dtd/mybatis-3-config.dtd"> <configuration><!-- 引入分页插件 --><plugins><plugin interceptor="com.github.pagehelper.PageInterceptor"><!-- 分页参数合理化 --><property name="reasonable" value="true"/></plugin></plugins> </configuration>
5，访问测试
A：准备数据库数据
创建一个user表（oracle数据库里面user是关键字）
表数据
B：实体类（view）
在之前创建好的view包中创建User实体类
package com.ssm.view;public class User {private int user_id;private String user_name;private String user_password;public int getUser_id() {return user_id;}public void setUser_id(int user_id) {this.user_id = user_id;}public String getUser_name() {return user_name;}public void setUser_name(String user_name) {this.user_name = user_name;}public String getUser_password() {return user_password;}public void setUser_password(String user_password) {this.user_password = user_password;}}
C：dao层（接口）
在之前创建好的dao包中创建UserDao接口 并写登录的方法
package com.ssm.dao;import org.apache.ibatis.annotations.Param;import com.ssm.view.User;public interface UserDao {/*** 登录操作* @param user_name 用户名* @param user_password 密码* @return*/public User login(@Param("user_name")String user_name,@Param("user_password")String user_password); }
在src/main/resources/路径下创建mapper文件夹 用来放mybatis dao的配置文件
创建xml文件 名称为UserDaomapper.xml
<?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE mapper PUBLIC "-//ibatis.apache.org//DTD Mapper 3.0//EN""http://ibatis.apache.org/dtd/ibatis-3-mapper.dtd"><mapper namespace="com.ssm.dao.UserDao"><!-- 对应的dao包的类 --><!-- 建立sql查询结果字段与实体属性的映射关系 --><resultMap id="UserMap" type="com.ssm.view.User"><!-- 对应的实体类的路径 --><result column="user_id" property="user_id" /><result column="user_name" property="user_name" /><result column="user_password" property="user_password" /></resultMap><select id="login" resultMap="UserMap">SELECT*FROMuserWHEREuser_name=#{user_name} and user_password=#{user_password}</select></mapper>
D：service层
在之前创建好的service包中创建UserService类 写登录的方法
package com.ssm.service;import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service;import com.ssm.dao.UserDao; import com.ssm.view.User;@Service("userService") public class UserService {@Autowiredprivate UserDao userDao;/*** 登录操作* @param user_name* @param user_password* @return*/public User login(String user_name,String user_password) {return userDao.login(user_name, user_password);} }
E：准备页面（登录）
之前创建的index页面
<%@ page language="java" contentType="text/html; charset=UTF-8" isELIgnored="false"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=UTF-8"> <title>登录页面</title> </head> <body><form action="#" method="post">账号：<input type="text" id="user_name" name="user_name"><br>密码：<input type="password" id="user_password" name="user_password"><br><input type="submit" value="login"></form> </body> </html>
在创建登录成功后的页面
<%@ page language="java" contentType="text/html; charset=UTF-8" isELIgnored="false"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=UTF-8"> <title>登录成功</title> </head> <body>hello </body> </html>
F：控制层（action/controller）
在之前创建好的action包里创建一个UserAction类
G：访问（省略）
![[AX]AX2012开发新特性-全文索引](http://pic.xiahunao.cn/[AX]AX2012开发新特性-全文索引)
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