初学ssm框架的信息

     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 文件进行依赖管理的。

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和自动下载相关的包。

<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 、配置resource下面的四个文件。

3、首先对resource下的jdbc.properties进行配置 ,作用就是连接你的数据库的配置

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

4、接着是log4.properties的配置，它的作用是用来记录运行时产生的信息。

#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

5、接着是spring mvc .xml的配置。

<?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>

6、spring mybatis.xml  他的作用就是整合Spring 和Mybatis。

<?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>

7、还有的就是webapp 下面的WEB-INF下面的web.xml 的配置了

<?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>

 8、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;
     }
    

}

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);
    
}

UserServiceImp 实现层

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);
    }

}

model(USer model)层

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();
    }
}

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>

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 文件了。

login.jsp

<%@ 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>

register.jsp

<%@ 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>