springMVC、mybatis实现的登录页面（maven）

首先项目结构

pom文件

<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.maven</groupId>
  <artifactId>springMvc_MyBatis</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>springMvc_MyBatis Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>

        <!-- JUnit testing framework -->
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>

        <!-- Spring framework -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.2.6.RELEASE</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>3.2.6.RELEASE</version>
        </dependency>

        <!-- Spring AOP dependency -->
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib</artifactId>
            <version>2.2</version>
        </dependency>

        <!-- MySQL database driver -->
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.0.5</version>
        </dependency>

        <dependency>
            <groupId>dom4j</groupId>
            <artifactId>dom4j</artifactId>
            <version>1.6.1</version>
        </dependency>

        <dependency>
            <groupId>commons-dbcp</groupId>
            <artifactId>commons-dbcp</artifactId>
            <version>1.4</version>
           </dependency>

        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>

        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
        </dependency>

        <dependency>
            <groupId>antlr</groupId>
            <artifactId>antlr</artifactId>
            <version>2.7.7</version>
        </dependency>

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis</artifactId>
            <version>3.2.3</version>
        </dependency>

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>3.1.1.RELEASE</version>
        </dependency> 

        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.1.1.RELEASE</version>
        </dependency> 

        <dependency>
            <groupId>org.mybatis</groupId>
            <artifactId>mybatis-spring</artifactId>
            <version>1.2.1</version>
        </dependency>

        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>

        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>1.7.4</version>
        </dependency>

        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-asl</artifactId>
            <version>1.9.11</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-lgpl</artifactId>
            <version>1.9.11</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.11</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-lgpl</artifactId>
            <version>1.9.11</version>
        </dependency> 

        <dependency>
            <groupId>commons-io</groupId>
            <artifactId>commons-io</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.2.2</version>
        </dependency> 

        <!-- httpclient -->
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.2.2</version>
        </dependency> 

        <!-- log日志 -->
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.9</version>
        </dependency> 

        <!--servlet -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>taglibs</groupId>
            <artifactId>standard</artifactId>
            <version>1.1.2</version>
        </dependency> 

        <dependency>
            <groupId>javaee</groupId>
            <artifactId>javaee-api</artifactId>
            <version>5</version>
            <scope>provided</scope>
        </dependency> 

    </dependencies>
  <build>
    <finalName>springMvc_MyBatis</finalName>
  </build>
</project>

使用maven install下载需要的jar包。

之后一步一步实现这一个简单的小例子。

一个特别好的例子的网址

http://www.baikeyang.com/code/96610.html

本机运行结果：

主要代码：

Add.java

package com.bky.model;

public class Add {
    private String id;

    private String tname;

    private String tpwd;

    public String getId() {
        return id;
    }

    public void setId(String id) {
        this.id = id == null ? null : id.trim();
    }

    public String getTname() {
        return tname;
    }

    public void setTname(String tname) {
        this.tname = tname == null ? null : tname.trim();
    }

    public String getTpwd() {
        return tpwd;
    }

    public void setTpwd(String tpwd) {
        this.tpwd = tpwd == null ? null : tpwd.trim();
    }
}

AddMapper.java

package com.bky.dao;

import java.util.List;

import com.bky.model.Add;

public interface AddMapper {
    int deleteByPrimaryKey(String id);

    int insert(Add record);

    int insertSelective(Add record);

    Add selectByPrimaryKey(String id);

    int updateByPrimaryKeySelective(Add record);

    int updateByPrimaryKey(Add record);

    List<Add> getAll();
}

AddMapper.xml

<?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.bky.dao.AddMapper" >
  <resultMap id="BaseResultMap" type="com.bky.model.Add" >
    <id column="id" property="id" jdbcType="VARCHAR" />
    <result column="tname" property="tname" jdbcType="VARCHAR" />
    <result column="tpwd" property="tpwd" jdbcType="VARCHAR" />
  </resultMap>
  <sql id="Base_Column_List" >
    id, tname, tpwd
  </sql>
  <select id="selectByPrimaryKey" resultMap="BaseResultMap" parameterType="java.lang.String" >
    select
    <include refid="Base_Column_List" />
    from tadd
    where id = #{id,jdbcType=VARCHAR}
  </select>
  <delete id="deleteByPrimaryKey" parameterType="java.lang.String" >
    delete from tadd
    where id = #{id,jdbcType=VARCHAR}
  </delete>
  <insert id="insert" parameterType="com.bky.model.Add" >
    insert into tadd (id, tname, tpwd
      )
    values (#{id,jdbcType=VARCHAR}, #{tname,jdbcType=VARCHAR}, #{tpwd,jdbcType=VARCHAR}
      )
  </insert>
  <insert id="insertSelective" parameterType="com.bky.model.Add" >
    insert into tadd
    <trim prefix="(" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        id,
      </if>
      <if test="tname != null" >
        tname,
      </if>
      <if test="tpwd != null" >
        tpwd,
      </if>
    </trim>
    <trim prefix="values (" suffix=")" suffixOverrides="," >
      <if test="id != null" >
        #{id,jdbcType=VARCHAR},
      </if>
      <if test="tname != null" >
        #{tname,jdbcType=VARCHAR},
      </if>
      <if test="tpwd != null" >
        #{tpwd,jdbcType=VARCHAR},
      </if>
    </trim>
  </insert>
  <update id="updateByPrimaryKeySelective" parameterType="com.bky.model.Add" >
    update tadd
    <set >
      <if test="tname != null" >
        tname = #{tname,jdbcType=VARCHAR},
      </if>
      <if test="tpwd != null" >
        tpwd = #{tpwd,jdbcType=VARCHAR},
      </if>
    </set>
    where id = #{id,jdbcType=VARCHAR}
  </update>
  <update id="updateByPrimaryKey" parameterType="com.bky.model.Add" >
    update tadd
    set tname = #{tname,jdbcType=VARCHAR},
      tpwd = #{tpwd,jdbcType=VARCHAR}
    where id = #{id,jdbcType=VARCHAR}
  </update>

  <select id="getAll" resultMap="BaseResultMap">
      SELECT * FROM tadd
  </select>
</mapper>

BaseService.java

package com.bky.service;

import java.util.List;

import com.bky.model.Add;

public interface BaseService {

    String addInfo(Add addInfo);

    List<Add> getAll();

    String delete(String id);

    Add findById(String id);

    String update(Add addInfo);

}

BaseServiceImpl.java

package com.bky.service.impl;

import java.util.List;
import java.util.UUID;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import com.bky.dao.AddMapper;
import com.bky.model.Add;
import com.bky.service.BaseService;

@Service("baseService")
public class BaseServiceImpl implements BaseService {

    private AddMapper addMapper;

    public AddMapper getAddMapper() {
        return addMapper;
    }
    @Autowired
    public void setAddMapper(AddMapper addMapper) {
        this.addMapper = addMapper;
    }

    @Override
    public String addInfo(Add addInfo) {
        if (addMapper.insertSelective(addInfo) == 1) {
            return "添加成功";
        }
        return "添加失败";
    }
    @Override
    public List<Add> getAll() {
        return addMapper.getAll();
    }
    @Override
    public String delete(String id) {
        if (addMapper.deleteByPrimaryKey(id) == 1) {
            return "删除成功";
        }
        return "删除失败";
    }
    @Override
    public Add findById(String id) {
        return addMapper.selectByPrimaryKey(id);
    }
    @Override
    public String update(Add addInfo) {
        if (addMapper.updateByPrimaryKeySelective(addInfo) == 1) {
            return "更新成功";
        }
        return "更新失败";
    }

}

BaseController.java

package com.bky.controller;

import java.util.List;
import java.util.UUID;

import javax.servlet.http.HttpServletRequest;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;

import com.bky.model.Add;
import com.bky.service.BaseService;

@Controller
public class BaseController {

    private BaseService baseService;

    public BaseService getBaseService() {
        return baseService;
    }
    @Autowired
    public void setBaseService(BaseService baseService) {
        this.baseService = baseService;
    }

    @SuppressWarnings("finally")
    @RequestMapping("addInfo")
    public String add(Add add,HttpServletRequest request){
        try {
            add.setId(UUID.randomUUID().toString());
            System.out.println(add.getId() + ":::::" + add.getTname() + ":::::" + add.getTpwd());
            String str = baseService.addInfo(add);
            System.out.println(str);
            request.setAttribute("InfoMessage", str);
        } catch (Exception e) {
            e.printStackTrace();
            request.setAttribute("InfoMessage", "添加信息失败！具体异常信息：" + e.getMessage());
        } finally {
            return "result";
        }
    }

    @RequestMapping("getAll")
    public String getAddInfoAll(HttpServletRequest request){
        try {
            List<Add> list = baseService.getAll();
            System.out.println(list);
            request.setAttribute("addLists", list);
            return "listAll";
        } catch (Exception e) {
            e.printStackTrace();
            request.setAttribute("InfoMessage", "信息载入失败！具体异常信息：" + e.getMessage());
            return "result";
        }
    }

    @SuppressWarnings("finally")
    @RequestMapping("del")
    public String del(String tid,HttpServletRequest request){
        try {
            String str = baseService.delete(tid);
            request.setAttribute("InfoMessage", str);
        } catch (Exception e) {
            e.printStackTrace();
            request.setAttribute("InfoMessage", "删除信息失败！具体异常信息：" + e.getMessage());
        } finally {
            return "result";
        }
    }
    @RequestMapping("modify")
    public String modify(String tid,HttpServletRequest request){
        try {
            Add add = baseService.findById(tid);
            request.setAttribute("add", add);
            return "modify";
        } catch (Exception e) {
            e.printStackTrace();
            request.setAttribute("InfoMessage", "信息载入失败！具体异常信息：" + e.getMessage());
            return "result";
        }
    }
    @SuppressWarnings("finally")
    @RequestMapping("update")
    public String update(Add add,HttpServletRequest request){
        try {
            String str = baseService.update(add);
            request.setAttribute("InfoMessage", str);
        } catch (Exception e) {
            e.printStackTrace();
            request.setAttribute("InfoMessage", "更新信息失败！具体异常信息：" + e.getMessage());
        } finally {
            return "result";
        }
    }

}

配置文件

config.properties

#hibernate.dialect=com.bky.util.Oracle10gDialect
#driverClassName=oracle.jdbc.driver.OracleDriver
#validationQuery=SELECT 1 FROM DUAL
#jdbc_url=jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=Baikeyang)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl)))
#jdbc_username=sshe
#jdbc_password=1234

#hibernate.dialect=org.hibernate.dialect.Oracle9Dialect
#driverClassName=oracle.jdbc.driver.OracleDriver
#validationQuery=SELECT 1 FROM DUAL
#jdbc_url=jdbc:oracle:thin:@127.0.0.1:1521:orcl
#jdbc_username=sshe
#jdbc_password=1234

#hibernate.dialect=org.hibernate.dialect.MySQL5InnoDBDialect
#driverClassName=com.mysql.jdbc.Driver
validationQuery=SELECT 1
jdbc_url=jdbc:mysql://localhost:3306/bkytest?useUnicode=true&characterEncoding=UTF-8&zeroDateTimeBehavior=convertToNull
jdbc_username=root
jdbc_password=root

#hibernate.dialect=org.hibernate.dialect.SQLServer2008Dialect
#driverClassName=net.sourceforge.jtds.jdbc.Driver
#validationQuery=SELECT 1
#jdbc_url=jdbc:jtds:sqlserver://127.0.0.1:1433/dbName
#jdbc_username=sa
#jdbc_password=123456

#jndiName=java:comp/env/BenDiShuJuYuan

#hibernate.hbm2ddl.auto=update
#hibernate.show_sql=true
#hibernate.format_sql=true
#hibernate.use_sql_comments=true

#sessionInfoName=sessionInfo

#uploadPath=/ssheUploadFile

spring-mvc.xml

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:mvc="http://www.springframework.org/schema/mvc" 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" xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">

    <!-- 自动扫描controller包下的所有类，使其认为spring mvc的控制器 -->
    <context:component-scan base-package="com.bky.controller" />

    <!-- 对模型视图名称的解析，即在模型视图名称添加前后缀 -->
    <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:prefix="/" p:suffix=".jsp" />

</beans>

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:tx="http://www.springframework.org/schema/tx" xmlns:aop="http://www.springframework.org/schema/aop" xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx-3.0.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop-3.0.xsd
">

    <!-- 配置数据源 -->
    <bean name="dataSource" class="com.alibaba.druid.pool.DruidDataSource" init-method="init" destroy-method="close">
        <property name="url" value="${jdbc_url}" />
        <property name="username" value="${jdbc_username}" />
        <property name="password" value="${jdbc_password}" />

        <!-- 初始化连接大小 -->
        <property name="initialSize" value="0" />
        <!-- 连接池最大使用连接数量 -->
        <property name="maxActive" value="20" />
        <!-- 连接池最大空闲 -->
        <property name="maxIdle" value="20" />
        <!-- 连接池最小空闲 -->
        <property name="minIdle" value="0" />
        <!-- 获取连接最大等待时间 -->
        <property name="maxWait" value="60000" />

        <!-- <property name="poolPreparedStatements" value="true" /> <property name="maxPoolPreparedStatementPerConnectionSize" value="33" /> -->

        <property name="validationQuery" value="${validationQuery}" />
        <property name="testOnBorrow" value="false" />
        <property name="testOnReturn" value="false" />
        <property name="testWhileIdle" value="true" />

        <!-- 配置间隔多久才进行一次检测，检测需要关闭的空闲连接，单位是毫秒 -->
        <property name="timeBetweenEvictionRunsMillis" value="60000" />
        <!-- 配置一个连接在池中最小生存的时间，单位是毫秒 -->
        <property name="minEvictableIdleTimeMillis" value="25200000" />

        <!-- 打开removeAbandoned功能 -->
        <property name="removeAbandoned" value="true" />
        <!-- 1800秒，也就是30分钟 -->
        <property name="removeAbandonedTimeout" value="1800" />
        <!-- 关闭abanded连接时输出错误日志 -->
        <property name="logAbandoned" value="true" />

        <!-- 监控数据库 -->
        <!-- <property name="filters" value="stat" /> -->
        <property name="filters" value="mergeStat" />
    </bean>

    <!-- myBatis文件 -->
    <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
        <property name="dataSource" ref="dataSource" />
        <!-- 自动扫描entity目录, 省掉Configuration.xml里的手工配置 -->
        <property name="mapperLocations" value="classpath:com/bky/mapping/*.xml" />
    </bean>

    <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
        <property name="basePackage" value="com.bky.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>

    <!-- 配置事务管理器 -->
    <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
        <property name="dataSource" ref="dataSource" />
    </bean>

    <!-- 注解方式配置事物 -->
    <!-- <tx:annotation-driven transaction-manager="transactionManager" /> -->

    <!-- 拦截器方式配置事物 -->
    <tx:advice id="transactionAdvice" transaction-manager="transactionManager">
        <tx:attributes>
            <tx:method name="add*" propagation="REQUIRED" />
            <tx:method name="append*" propagation="REQUIRED" />
            <tx:method name="insert*" propagation="REQUIRED" />
            <tx:method name="save*" propagation="REQUIRED" />
            <tx:method name="update*" propagation="REQUIRED" />
            <tx:method name="modify*" propagation="REQUIRED" />
            <tx:method name="edit*" propagation="REQUIRED" />
            <tx:method name="delete*" propagation="REQUIRED" />
            <tx:method name="remove*" propagation="REQUIRED" />
            <tx:method name="repair" propagation="REQUIRED" />
            <tx:method name="delAndRepair" propagation="REQUIRED" />

            <tx:method name="get*" propagation="SUPPORTS" />
            <tx:method name="find*" propagation="SUPPORTS" />
            <tx:method name="load*" propagation="SUPPORTS" />
            <tx:method name="search*" propagation="SUPPORTS" />
            <tx:method name="datagrid*" propagation="SUPPORTS" />

            <tx:method name="*" propagation="SUPPORTS" />
        </tx:attributes>
    </tx:advice>
    <aop:config>
        <aop:pointcut id="transactionPointcut" expression="execution(* com.bky.service..*Impl.*(..))" />
        <aop:advisor pointcut-ref="transactionPointcut" advice-ref="transactionAdvice" />
    </aop:config>

    <!-- 配置druid监控spring jdbc -->
    <bean id="druid-stat-interceptor" class="com.alibaba.druid.support.spring.stat.DruidStatInterceptor">
    </bean>
    <bean id="druid-stat-pointcut" class="org.springframework.aop.support.JdkRegexpMethodPointcut" scope="prototype">
        <property name="patterns">
            <list>
                <value>com.bky.service.*</value>
            </list>
        </property>
    </bean>

    <aop:config>
        <aop:advisor advice-ref="druid-stat-interceptor" pointcut-ref="druid-stat-pointcut" />
    </aop:config>
</beans>

spring.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:context="http://www.springframework.org/schema/context" xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
">
    <!-- 引入属性文件 -->
    <context:property-placeholder location="classpath:config.properties" />
    <!-- 自动扫描(自动注入) -->
    <context:component-scan base-package="com.bky.service..*" />

</beans>

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app version="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">
  <display-name></display-name>
  <context-param>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring.xml;classpath:spring-mybatis.xml</param-value>
  </context-param>

  <filter>
    <description>字符集过滤器</description>
    <filter-name>encodingFilter</filter-name>
    <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
    <init-param>
      <description>字符集编码</description>
      <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>

  <listener>
    <description>spring监听器</description>
    <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <listener>
    <listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
  </listener>
  <servlet>
    <description>spring mvc servlet</description>
    <servlet-name>springMvc</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
    <init-param>
      <description>spring mvc 配置文件</description>
      <param-name>contextConfigLocation</param-name>
      <param-value>classpath:spring-mvc.xml</param-value>
    </init-param>
    <load-on-startup>1</load-on-startup>
  </servlet>
  <servlet-mapping>
    <servlet-name>springMvc</servlet-name>
    <url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <session-config>
    <session-timeout>15</session-timeout>
  </session-config>
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
</web-app>

index.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">

    <title>My JSP 'index.jsp' starting page</title>
    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->
  </head>

  <body>
    <a href="add.jsp">新增数据</a>
    <a href="getAll.do">查看全部数据</a>
  </body>
</html>

add.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%
String path = request.getContextPath();

String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">

    <title>添加数据</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>

  <body>
    <form action="<%=request.getContextPath() %>/addInfo.do" method="post">

        用户名：<input type="text" name="tname">
        密码：<input type="password" name="tpwd">
    <input type="submit" value="提交数据">

      </form>
  </body>
</html>

listall.jsp

<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
  <head>
    <base href="<%=basePath%>">

    <title>所有数据</title>

    <meta http-equiv="pragma" content="no-cache">
    <meta http-equiv="cache-control" content="no-cache">
    <meta http-equiv="expires" content="0">
    <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
    <meta http-equiv="description" content="This is my page">
    <!--
    <link rel="stylesheet" type="text/css" href="styles.css">
    -->

  </head>

  <body>
    所有结果<br/>
    <table border="1">
        <tr>
            <td>编号</td>
            <td>用户名</td>
            <td>密码</td>
            <td>操作</td>
        </tr>
        <c:forEach var="list"  items="${addLists}">
        <tr>
            <td>${list.id}</td>
            <td>${list.tname}</td>
            <td>${list.tpwd}</td>
            <td><a href="modify.do?tid=${list.id}">更新</a>&nbsp;&nbsp;&nbsp;&nbsp;<a href="del.do?tid=${list.id}">删除</a></td>
        </tr>
        </c:forEach>
    </table>
  </body>
</html>