菜鸟 ssm 框架的学习之路

跟着老师学习了两个月的java语言，现在学习到了框架的部分，一直想在博客上写点东西的，只是自己一直没有时间，其实到底也是懒，鲁迅说过:"时间就像海绵里的水，只要愿意去挤还是有的",所以废话不多说，直接上代码。

首先框架一开始学还是比较难，ssm框架，就是Spring ,SpringMVC ,mybstis 的简称，我们是从mybstis 开始学起的，mybatis的作用作为一个连接数据库的框架，可以很好配置连接好数据库，有mybatis,我们对数据库增删改查的操作更为简便了。SSM框架，我们用MAVEN工具对他们进行管理，maven 工具的主要作用就是为我们的工程自动配置好我们所需的架包，是通过POM.xml 文件进行依懒管理的。

ssm02这个工程使用maven工具进行管理和配置的，他的主要作用是实现用户的登陆和注册！以及对学生信息的管理，当然其中包括了增删改查的四个基本的操作，详细的具体的过程直接看后面的代码！

1 首先是POM.xml 文件的配置，他的作用主要是添加依懒的关系。

<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.zzty</groupId>
  <artifactId>ssm01</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>ssm01 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>3.1.1</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>4.11</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>1.1.0</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>ssm01</finalName>
  </build>
</project>

　　2 就是再配置resources 下面的四个文件

jdbc.properties 连接你的数据库的配置，还有一些作用自己理解。

driver=com.mysql.jdbc.Driver
url=jdbc:mysql://localhost:3306/ssm01
username=root
password=root
#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

　　log4.properties 用来记录工程运行调试的记录什么的。

#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

　　3 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="zizai.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-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-->
	<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
		  
		<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>

　　4 spring mybatis.xml 他的作用就是就Spring 和Mybatis 整合起来。

<?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 -->
	<context:component-scan base-package="zizai.*" />
	<!-- 引入配置文件 -->
	<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="${driver}" />
		<property name="url" value="${url}" />
		<property name="username" value="${username}" />
		<property name="password" value="${password}" />
		<!-- 初始化连接大小 -->
		<property name="initialSize" value="${initialSize}"></property>
		<!-- 连接池最大数量 -->
		<property name="maxActive" value="${maxActive}"></property>
		<!-- 连接池最大空闲 -->
		<property name="maxIdle" value="${maxIdle}"></property>
		<!-- 连接池最小空闲 -->
		<property name="minIdle" value="${minIdle}"></property>
		<!-- 获取连接最大等待时间 -->
		<property name="maxWait" value="${maxWait}"></property>
	</bean>

	<!-- spring和MyBatis完美整合，不需要mybatis的配置映射文件 -->
	<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
		<property name="dataSource" ref="dataSource" />
		<!-- 自动扫描mapping.xml文件 -->
		<property name="mapperLocations" value="classpath:zizai/mapping/*.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="zizai.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>

　　5.还有webapp 下面的WEB-INF下面的web.xml 的配置

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
	xmlns="http://java.sun.com/xml/ns/javaee"
	xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
	version="3.0">
	<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>
	 <servlet-mapping>
        <servlet-name>default</servlet-name>
        <url-pattern>/resources/*</url-pattern>
    </servlet-mapping>
	

	<!-- 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>
	<!-- 配置SESSION超时，单位是分钟 -->
	<session-config>
		<session-timeout>15</session-timeout>
	</session-config>

</web-app>

二. 现在基本把SSM框架搭建起来，接下来就是上代码的时间到，其实真的写代码好像也不多

如上图，在zizai的文件夹有5个包，其中3个包使用工具generator生成的，这三个包是dao层，model层，mapping层，下面我也详细讲generator这个的用法。

1首先看我的generator文件夹

可以看到有四个文件，其中src是自己新建的，generator.xml 自带的，需要根据你自己数据库的来进行配值，先配置好我自己的generator.xml的文件

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE generatorConfiguration PUBLIC "-//mybatis.org//DTD MyBatis Generator Configuration 1.0//EN" "http://mybatis.org/dtd/mybatis-generator-config_1_0.dtd">
<generatorConfiguration>
    <!-- 数据库驱动包位置 -->
    <!-- <classPathEntry location="D:\software\lib\mysql-connector-java-5.1.21.jar" /> -->
    <classPathEntry location="C:\Users\Administrator.WIN-2L7BJUF4P9K\.m2\repository\mysql\mysql-connector-java\5.1.30\mysql-connector-java-5.1.30.jar" />
    <context id="DB2Tables" targetRuntime="MyBatis3">
        <commentGenerator>
            <property name="suppressAllComments" value="true" />
        </commentGenerator>
        <!-- 数据库链接URL、用户名、密码 -->
         <jdbcConnection driverClass="com.mysql.jdbc.Driver" connectionURL="jdbc:mysql://localhost:3306/test" userId="root" password="root"> 
        <!--<jdbcConnection driverClass="oracle.jdbc.driver.OracleDriver" connectionURL="jdbc:oracle:thin:@localhost:1521:orcl" userId="msa" password="msa">-->
        </jdbcConnection>
        <javaTypeResolver>
            <property name="forceBigDecimals" value="false" />
        </javaTypeResolver>
        <!-- 生成模型的包名和位置 -->
        <javaModelGenerator targetPackage="zz.model" targetProject="D:\zz\workspace\mybatis\src">
            <property name="enableSubPackages" value="true" />
            <property name="trimStrings" value="true" />
        </javaModelGenerator>
        <!-- 生成的映射文件包名和位置 -->
        <sqlMapGenerator targetPackage="zz.mapping" targetProject="D:\zz\workspace\mybatis\src">
            <property name="enableSubPackages" value="true" />
        </sqlMapGenerator>
        <!-- 生成DAO的包名和位置 -->
        <javaClientGenerator type="XMLMAPPER" targetPackage="zz.dao" targetProject="D:\zz\workspace\mybatis\src">
            <property name="enableSubPackages" value="true" />
        </javaClientGenerator>
        <!-- 要生成那些表(更改tableName和domainObjectName就可以) -->
        <table tableName="user_t" domainObjectName="User" enableCountByExample="false" enableUpdateByExample="false" enableDeleteByExample="false" enableSelectByExample="false" selectByExampleQueryId="false" />
        
    </context>
</generatorConfiguration>

3 打开cmd ,执行txt 文件的那个生成语句

4 可以看到执行成功，这个时候src文件夹就会自动生成model ,mapping ,dao 三个层！

三。我们现在要写的就是Controller层，Service接口层，ServiceImp接口的实现层！就一个列子为例来说明的吧！这个UserController层，主要是实现用户的登陆和注册以及修改用户的密码

package zizai.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 org.springframework.web.servlet.ModelAndView;

import zizai.model.User;
import zizai.service.StudentService;
import zizai.service.UserService;

@Controller  
@RequestMapping("/user") 
public class UserController {
    @Resource
    private UserService userService;
    @Resource
    private StudentService studentService;
     @RequestMapping("/showUser")  
        public String showUser(HttpServletRequest request,Model model){  
            int userId = Integer.parseInt(request.getParameter("id"));  
            User user = this.userService.getUserById(userId);  
            model.addAttribute("user", user);  
            return "showUser";  
} 
     @RequestMapping("/table")  
     public ModelAndView showTable(HttpServletRequest request){  
     ModelAndView view = new ModelAndView("tables");
        return view; 
           
} 
     @RequestMapping("/index")  
        public ModelAndView toIndex(HttpServletRequest request){  
         ModelAndView view = new ModelAndView("login");
        return view;
} 
     @RequestMapping("/login2")  
     public ModelAndView login(HttpServletRequest request,Model model){
         String  username = request.getParameter("name");
         String pwd = request.getParameter("pwd");
         User user = this.userService.getUserByName(username);
         String url="login";
         if(user!=null&&pwd.equals(user.getPwd())){
             url="sucess";
         }else{
             url="fail";
         }
         ModelAndView view = new ModelAndView(url);
         return view;
     } 
     @RequestMapping("/register")  
     public ModelAndView register(HttpServletRequest request,Model model){     
         String  username = request.getParameter("name");
         String pwd = request.getParameter("pwd");
         User user = new User(); 
         user.setName(username);
         user.setPwd(pwd);
         int i=this.userService.addUser(user);
         String url="register";
         if(username!=null||pwd!=null){        
         if(i>0){
             url="login";
         }else{
             url="fail";
         }                 
        }
         ModelAndView view = new ModelAndView(url);
        return view;
     } 
    
     @RequestMapping("/updateUserPwd")  
        public String updateUserPwd(HttpServletRequest request,Model model){
        String name=request.getParameter("name");
        String pwd=request.getParameter("pwd");
        String pwd1=request.getParameter("pwd1");
        if(pwd1.equals(pwd)&&pwd1!=null){        
        User user=new User();
        user.setPwd(pwd);
        user.setName(name);
        int i=this.userService.updateUserPwdByName(user);        
        return "success";
        }
        else{
            return "fail2";
        }
         }
     @RequestMapping("/getUserByName")  
     public ModelAndView selectByName(HttpServletRequest request,Model model){
        String name = request.getParameter("name");
        User user=new User();
        user=this.userService.getUserByName(name);
        String url="getUserByName";
        if(name!=null){
            url="updateUserPwd";
        }        
        ModelAndView view = new ModelAndView();
        view.setViewName(url);
        view.addObject("xxx", user);
        
        return view;
     }
    

}

2 useService 接口层

package zizai.service;

import zizai.model.User;

public interface UserService {
    public User getUserById(int id);
    public User getUserByName(String name);
    public int addUser(User user);
    public int updateUserPwdByName(User user);
    
}

3 UserServiceImp

package zizai.serviceImp;

import javax.annotation.Resource;

import org.springframework.stereotype.Service;

import zizai.dao.UserMapper;
import zizai.model.User;
import zizai.service.UserService;

@Service("userService")
public class UserServiceImp implements UserService {
    @Resource
    private UserMapper userMapper;
    
    public User getUserById(int id) {
        // TODO Auto-generated method stub
        return userMapper.selectByPrimaryKey(id);
    }

    public int addUser(User user) {
        // TODO Auto-generated method stub
        return userMapper.insert(user);
    }

    public User getUserByName(String name) {
        // TODO Auto-generated method stub
        return userMapper.selectByName(name);
    }
    public int updateUserPwdByName(User user) {
        // TODO Auto-generated method stub
        return userMapper.updateUserPwdByName(user);
    }

}

4 model(USer model)

package zizai.model;

public class User {
    private Integer id;

    private String name;

    private String pwd;

    public Integer getId() {
        return id;
    }

    public void setId(Integer id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name == null ? null : name.trim();
    }

    public String getPwd() {
        return pwd;
    }

    public void setPwd(String pwd) {
        this.pwd = pwd == null ? null : pwd.trim();
    }
}

　　5 mapping (USer mapping)

<?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="zizai.dao.UserMapper" >
  <resultMap id="BaseResultMap" type="zizai.model.User" >
    <id column="id" property="id" jdbcType="INTEGER" />
    <result column="name" property="name" jdbcType="VARCHAR" />
    <result column="pwd" property="pwd" jdbcType="VARCHAR" />
  </resultMap>
  <sql id="Base_Column_List" >
    id, name, pwd
  </sql>
  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.Integer" >
    select 
    <include refid="Base_Column_List" />
    from suser
    where id = #{id,jdbcType=INTEGER}
  </select>
  <select id="selectByName" resultMap="BaseResultMap" parameterType="java.lang.String" >
    select  
    <include refid="Base_Column_List" />
    from suser
    where name = #{name,jdbcType=VARCHAR}
  </select>
  
  <delete id="deleteByPrimaryKey" parameterType="java.lang.Integer" >
    delete from suser
    where id = #{id,jdbcType=INTEGER}
  </delete>
  <insert id="insert" parameterType="zizai.model.User" >
    insert into suser (id, name, pwd
      )
    values (#{id,jdbcType=INTEGER}, #{name,jdbcType=VARCHAR}, #{pwd,jdbcType=VARCHAR}
      )
  </insert>
  
  
  <insert id="insertSelective" parameterType="zizai.model.User" >
    insert into suser
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        id,
      </if>
      <if test="name != null" >
        name,
      </if>
      <if test="pwd != null" >
        pwd,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        #{id,jdbcType=INTEGER},
      </if>
      <if test="name != null" >
        #{name,jdbcType=VARCHAR},
      </if>
      <if test="pwd != null" >
        #{pwd,jdbcType=VARCHAR},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="zizai.model.User" >
    update suser
    <set >
      <if test="name != null" >
        name = #{name,jdbcType=VARCHAR},
      </if>
      <if test="pwd != null" >
        pwd = #{pwd,jdbcType=VARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateByPrimaryKey" parameterType="zizai.model.User" >
    update suser
    set name = #{name,jdbcType=VARCHAR},
      pwd = #{pwd,jdbcType=VARCHAR}
    where id = #{id,jdbcType=INTEGER}
  </update>
  <update id="updateUserPwdByName" parameterType="zizai.model.User">
  update suser
    set pwd = #{pwd,jdbcType=VARCHAR}
    where name = #{name,jdbcType=VARCHAR}
  
  </update>
</mapper>

　　6 dao (user Dao)

package zizai.dao;

import zizai.model.User;

public interface UserMapper {
	int deleteByPrimaryKey(Integer id);

	int insert(User record);

	int insertSelective(User record);

	User selectByName(String name);

	User selectByPrimaryKey(Integer id);

	int updateByPrimaryKeySelective(User record);

	int updateByPrimaryKey(User record);
	
	int updateUserPwdByName(User user);
	
}

最后就是剩下WEB-INF 目录下的jsp文件夹下面的jsp 文件，这里主要带上用户登陆和注册的jsp 文件的吧，其他的我粘上去给你们。

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
<html>  
  <head>  
    <title>登录</title>  
  </head>  
   <h3> 欢迎来到自在天原的登陆页面</h3>
  <body style="text-align:center">  
  <div >
  <form action="/ssm02/user/login2">
   用户名:
    <input type="text" name="name"><br><br>
    &nbsp&nbsp&nbsp&nbsp密码: <input type="password" name="pwd"><br><br>   
    <button type="submit">登陆</button>
    <a href="/ssm02/user/register"><button>注册</button>
  
</div>
  
  </body>  
</html>

<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>  
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">  
<html>  
  <head>  
    <title>注册</title>  
  </head>  
    
  <body>  
  <div >
  <form action="/ssm02/user/register">
    &nbsp;&nbsp;  
    用户名：<input name = "name"><br>
&nbsp;&nbsp;&nbsp;&nbsp;密码：<input name = "pwd" type = "password"><br>
<input type = "submit" value = "注册">
  </form>
</div> 
  </body>  
</html>

就是这些东西了！第一次上传有干货的东西到博客园，其中难免会有许多的纰漏之处恳请各位园友兄弟一起指出，大家一起学习进步，本人也是刚开始学习java 语言，希望进步，提高自己的能力和水平，我写这些东西为了自己的理解和学习，以便日后工作可以很快可以回忆和使用，最后给我的码云的链接，里面有ssm02工程的完整代码以及自己平常学习的一些代码和大家一起分享。

http://git.oschina.net/nn839155963/Zizaitianyuan-luojunyuan/tree/master

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posted @ 2016-08-03 01:28 杰呼呼阅读(34349) 评论(5) 收藏举报

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