3、mybatis动态sql+struts2（通配符+全局配置+分页）

1.创建userinfo.sql数据库脚本

 1 create table USERINFO
 2 (
 3   id       NUMBER not null,
 4   uname    VARCHAR2(20),
 5   password VARCHAR2(20),
 6   age      NUMBER
 7 )
 8 ;
 9 alter table USERINFO add primary key (ID);
10
11 create sequence seq_userinfo;
12
13 insert into USERINFO (id, uname, password, age)
14 values (seq_userinfo.nextval, ‘holly‘, ‘123‘, 18);
15 insert into USERINFO (id, uname, password, age)
16 values (seq_userinfo.nextval, ‘石头‘, ‘123‘, 18);
17 insert into USERINFO (id, uname, password, age)
18 values (seq_userinfo.nextval, ‘朱亚楠‘, ‘123‘, 18);
19 insert into USERINFO (id, uname, password, age)
20 values (seq_userinfo.nextval, ‘大嘴‘, ‘123‘, null);
21 commit;

userinfo.sql

2.创建如下项目结构

3.在项目WebRoot的WEB-INF下的lib中加入如下jar文件

4.在com.entity包下创建UserInfo.java

 1 package com.entity;
 2
 3 import com.page.Page;
 4
 5 /**
 6  * 用户信息表
 7  * @author pc
 8  *
 9  */
10 public class UserInfo {
11     private Integer id;
12     private String uname;
13     private String password;
14     private Page page; //分页数据封装类
15
16     public UserInfo() {
17     }
18
19     public UserInfo(Integer id) {
20         this.id = id;
21     }
22
23
24     public UserInfo(Page page) {
25         this.page = page;
26     }
27
28     public UserInfo(String uname, String password) {
29         this.uname = uname;
30         this.password = password;
31     }
32     public UserInfo(Integer id, String uname, String password) {
33         this.id = id;
34         this.uname = uname;
35         this.password = password;
36     }
37     public Integer getId() {
38         return id;
39     }
40     public void setId(Integer id) {
41         this.id = id;
42     }
43     public String getUname() {
44         return uname;
45     }
46     public void setUname(String uname) {
47         this.uname = uname;
48     }
49     public String getPassword() {
50         return password;
51     }
52     public void setPassword(String password) {
53         this.password = password;
54     }
55
56     public Page getPage() {
57         return page;
58     }
59
60     public void setPage(Page page) {
61         this.page = page;
62     }
63
64     @Override
65     public String toString() {
66         return "UserInfo [id=" + id + ", password=" + password + ", uname="
67                 + uname + "]";
68     }
69
70
71 }

UserInfo.java

5.在com.mapper包下创建UserInfoMapper.java映射接口

 1 package com.mapper;
 2
 3 import java.util.List;
 4
 5 import com.entity.UserInfo;
 6
 7 public interface UserInfoMapper {
 8     /**
 9      * 根据id查询
10      * @param id
11      * @return
12      */
13     //public UserInfo getById(int id);
14     /**
15      * 根据对象查询对象
16      * @param user
17      * @return
18      */
19     //public UserInfo getByNamePwd(UserInfo user);
20     /**
21      * 查询所有和根据条件查询
22      * @return
23      */
24     public List<UserInfo> getAllAndWhere(UserInfo user);
25     /**
26      * 添加
27      * @param user
28      * @return
29      */
30     public Integer saveUser(UserInfo user);
31     /**
32      * 修改
33      * @param user
34      * @return
35      */
36     public Integer updateUser(UserInfo user);
37
38
39     /**
40      * 根据id删除
41      * @param id
42      * @return
43      */
44     public Integer deleteUser(int id);
45
46     /**
47      * 查询总记录数
48      * @return
49      */
50     public Integer getTotalCount();
51
52 }

UserInfoMapper.java

6.在com.mapper包下创建UserInfoMapper.xml映射文件

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
 3 <mapper namespace="com.mapper.UserInfoMapper">
 4     <!-- 查询所有和根据条件查询 -->
 5     <select id="getAllAndWhere" parameterType="User" resultType="User">
 6         <choose>
 7             <!-- 分页查询 -->
 8             <when test="page!=null">
 9               <![CDATA[
10                select * from
11                 (
12                   select rownum r,id,uname,password from userinfo
13                    where rownum<=#{page.startrow}
14                 )u
15                 where u.r>#{page.endrow}
16                 ]]>
17             </when>
18             <otherwise>
19                 select * from userinfo
20                 <where>
21                     <choose>
22                         <!-- 根据用户名和密码查询 -->
23                         <when test="uname!=null and password!=null">
24                             and uname=#{uname} and password=#{password}
25                         </when>
26                         <otherwise>
27                             <!-- 根据id查询 -->
28                             <if test="id!=null">
29                                 and id=#{id}
30                             </if>
31                         </otherwise>
32                     </choose>
33                 </where>
34             </otherwise>
35         </choose>
36
37     </select>
38     <!-- 修改 -->
39     <update id="updateUser" parameterType="User">
40         update userinfo set uname=#{uname},password=#{password} where id=#{id}
41     </update>
42
43     <!-- 添加 -->
44     <insert id="saveUser" parameterType="User">
45         insert into userinfo(id,uname,password)
46         values(seq_userinfo.nextval,#{uname},#{password})
47    </insert>
48     <!-- 删除 -->
49     <delete id="deleteUser" parameterType="int">
50         delete from userinfo where id=#{id}
51    </delete>
52     <!-- 查询总条数 -->
53     <select id="getTotalCount" resultType="Integer">
54         select count(*) from userinfo
55    </select>
56
57 </mapper>

UserInfoMapper.xml

7.在src下创建jdbc.properties的连接数据库的属性文件

1 driver=oracle.jdbc.driver.OracleDriver
2 url=jdbc\:oracle\:thin\:@127.0.0.1\:1521\:orcl
3 username=holly
4 password=sys

jdbc.properties

8.在src下创建日志文件log4j.properties属性文件

 1 log4j.rootLogger=DEBUG, Console
 2
 3 #Console
 4 log4j.appender.Console=org.apache.log4j.ConsoleAppender
 5 log4j.appender.Console.layout=org.apache.log4j.PatternLayout
 6 log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n
 7
 8 log4j.logger.java.sql.ResultSet=INFO
 9 log4j.logger.org.apache=INFO
10 log4j.logger.java.sql.Connection=DEBUG
11 log4j.logger.java.sql.Statement=DEBUG
12 log4j.logger.java.sql.PreparedStatement=DEBUG   

log4j.properties

9.在src下创建mybatis的主配置文件configuration.xml

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http://mybatis.org/dtd/mybatis-3-config.dtd" >
 3 <configuration>
 4   <!-- 引用属性文件 -->
 5   <properties resource="jdbc.properties"/>
 6
 7   <!-- 定义别名 -->
 8   <typeAliases>
 9     <typeAlias type="com.entity.UserInfo" alias="User"/>
10   </typeAliases>
11
12   <!-- 数据源配置 -->
13   <environments default="development">
14     <environment id="development">
15       <transactionManager type="JDBC"/>
16       <dataSource type="POOLED">
17         <property name="driver" value="${driver}"/>
18         <property name="url" value="${url}"/>
19         <property name="username" value="${username}"/>
20         <property name="password" value="${password}"/>
21       </dataSource>
22     </environment>
23   </environments>
24 <!-- 注册映射文件 -->
25 <mappers>
26   <mapper resource="com/mapper/UserInfoMapper.xml"/>
27 </mappers>
28 </configuration>

configuration.xml

10.在com.util包下创建获取SqlSession对象的MyBatisUtil.java工具类

 1 package com.util;
 2
 3 import java.io.IOException;
 4 import java.io.Reader;
 5
 6 import org.apache.ibatis.io.Resources;
 7 import org.apache.ibatis.session.SqlSession;
 8 import org.apache.ibatis.session.SqlSessionFactory;
 9 import org.apache.ibatis.session.SqlSessionFactoryBuilder;
10
11 /**
12  * 获取Sqlsession工具类
13  * @author pc
14  *
15  */
16 public class MyBatisUtil {
17     private static SqlSessionFactory sqlSessionFactory=null;
18     static{
19         try {
20             Reader reader=Resources.getResourceAsReader("configuration.xml");
21             sqlSessionFactory=new SqlSessionFactoryBuilder().build(reader);
22         } catch (IOException e) {
23             e.printStackTrace();
24         }
25     }
26
27     public static SqlSession getSqlSession(boolean isCommit){
28         return sqlSessionFactory.openSession(isCommit);
29     }
30
31 }

MyBatisUtil.java

11.在com.mapper.impl包下创建UserInfoMapperImpl.java映射接口实现类

 1 package com.mapper.impl;
 2
 3 import java.util.List;
 4
 5 import org.apache.ibatis.session.SqlSession;
 6
 7 import com.entity.UserInfo;
 8 import com.mapper.UserInfoMapper;
 9 import com.util.MyBatisUtil;
10
11 public class UserinfoMapperImpl implements UserInfoMapper {
12     private SqlSession sqlsession=null;
13     /**
14      * 删除
15      */
16     public Integer deleteUser(int id) {
17         sqlsession=MyBatisUtil.getSqlSession(true);
18         UserInfoMapper mapper=sqlsession.getMapper(UserInfoMapper.class);
19         Integer num=mapper.deleteUser(id);
20         sqlsession.close();
21         return num;
22     }
23    /**
24     * 登录和各种查
25     */
26     public List<UserInfo> getAllAndWhere(UserInfo user) {
27         sqlsession=MyBatisUtil.getSqlSession(false);
28         UserInfoMapper mapper=sqlsession.getMapper(UserInfoMapper.class);
29         List<UserInfo> list=mapper.getAllAndWhere(user);
30         sqlsession.close();
31         return list;
32     }
33    /**
34     * 添加
35     */
36     public Integer saveUser(UserInfo user) {
37         sqlsession=MyBatisUtil.getSqlSession(true);
38         UserInfoMapper mapper=sqlsession.getMapper(UserInfoMapper.class);
39         Integer num=mapper.saveUser(user);
40         sqlsession.close();
41         return num;
42     }
43     /**
44      * 修改
45      */
46     public Integer updateUser(UserInfo user) {
47         sqlsession=MyBatisUtil.getSqlSession(true);
48         UserInfoMapper mapper=sqlsession.getMapper(UserInfoMapper.class);
49         Integer num=mapper.updateUser(user);
50         sqlsession.close();
51         return num;
52     }
53     /**
54      * 查询总条数
55      */
56     public Integer getTotalCount() {
57         sqlsession=MyBatisUtil.getSqlSession(true);
58         UserInfoMapper mapper=sqlsession.getMapper(UserInfoMapper.class);
59         Integer num=mapper.getTotalCount();
60         sqlsession.close();
61         return num;
62     }
63
64
65
66 }

UserinfoMapperImpl.java

12.在com.page包下创建Page.java分页数据封装类

 1 package com.page;
 2
 3 public class Page {
 4     private Integer pagesize; // 页面大小
 5     private Integer pageno; // 当前页
 6     private Integer totalcount; // 总记录数
 7     private Integer totalpage;
 8     private Integer startrow; // 开始行
 9     private Integer endrow; // 结束行
10
11     public Page() {
12     }
13
14
15     /*public Page(Integer totalcount) {
16         this.setTotalpage(totalcount);
17     }*/
18
19
20     public Page(Integer pagesize, Integer pageno,Integer totalcount) {
21         this.pageno=pageno;
22         this.pagesize=pagesize;
23         this.endrow = (pageno - 1) * pagesize;
24         this.startrow = pageno * pagesize;
25         this.setTotalpage(totalcount);
26     }
27
28     public Integer getPagesize() {
29         return pagesize;
30     }
31
32     public void setPagesize(Integer pagesize) {
33
34             this.pagesize = pagesize;
35
36     }
37
38     public Integer getPageno() {
39         return pageno;
40     }
41
42     public void setPageno(Integer pageno) {
43
44             this.pageno = pageno;
45
46
47     }
48
49     public Integer getTotalcount() {
50         return totalcount;
51     }
52
53     public void setTotalcount(Integer totalcount) {
54         this.totalcount = totalcount;
55     }
56
57     public Integer getTotalpage() {
58         return totalpage;
59     }
60
61     public void setTotalpage(Integer totalcount) {
62         this.setTotalcount(totalcount);
63         this.totalpage = totalcount % pagesize == 0 ? totalcount / pagesize
64                 : totalcount / pagesize + 1;
65
66     }
67
68     public Integer getStartrow() {
69         return startrow;
70     }
71
72     public void setStartrow(Integer startrow) {
73         this.startrow = startrow;
74     }
75
76     public Integer getEndrow() {
77         return endrow;
78     }
79
80     public void setEndrow(Integer endrow) {
81         this.endrow = endrow;
82     }
83
84     @Override
85     public String toString() {
86         return "Page [endrow=" + endrow + ", pageno=" + pageno + ", pagesize="
87                 + pagesize + ", startrow=" + startrow + ", totalcount="
88                 + totalcount + ", totalpage=" + totalpage + "]";
89     }
90
91 }

Page.java

13.在com.service包下创建UserInfoService.java业务接口

package com.service;

import java.util.List;

import com.entity.UserInfo;

/**
 * 服务层接口
 * @author pc
 *
 */
public interface UserInfoService {
    /**
     * 根据id查询
     * @param id
     * @return
     */
    //public UserInfo getById(int id);
    /**
     * 根据对象查询对象
     * @param user
     * @return
     */
    //public UserInfo getByNamePwd(UserInfo user);
    /**
     * 查询所有和根据条件查询
     * @return
     */
    public List<UserInfo> getAllAndWhere(UserInfo user);
    /**
     * 添加
     * @param user
     * @return
     */
    public Integer saveUser(UserInfo user);
    /**
     * 修改
     * @param user
     * @return
     */
    public Integer updateUser(UserInfo user);

    /**
     * 根据id删除
     * @param id
     * @return
     */
    public Integer deleteUser(int id);

    /**
     * 查询总记录数
     * @return
     */
    public Integer getTotalCount();

    }

UserInfoService.java

14.在com.service.impl包下创建UserInfoServiceImpl.java业务接口实现类

 1 package com.service.impl;
 2
 3 import java.util.List;
 4
 5 import com.entity.UserInfo;
 6 import com.mapper.UserInfoMapper;
 7 import com.mapper.impl.UserinfoMapperImpl;
 8 import com.service.UserInfoService;
 9
10 public class UserInfoServiceImpl implements UserInfoService {
11     UserInfoMapper mapper=new UserinfoMapperImpl();
12
13     public Integer deleteUser(int id) {
14         return mapper.deleteUser(id);
15     }
16
17     public Integer updateUser(UserInfo user) {
18         return mapper.updateUser(user);
19     }
20
21     public List<UserInfo> getAllAndWhere(UserInfo user) {
22         return mapper.getAllAndWhere(user);
23     }
24
25     public Integer saveUser(UserInfo user) {
26         return mapper.saveUser(user);
27     }
28
29     public Integer getTotalCount() {
30         // TODO Auto-generated method stub
31         return mapper.getTotalCount();
32     }
33
34 }

UserInfoServiceImpl.java

15.在com.action包下创建Struts2的控制器类UserInfoAction.java

  1 package com.action;
  2
  3 import java.util.List;
  4
  5 import javax.servlet.http.HttpServletRequest;
  6 import javax.servlet.http.HttpSession;
  7
  8 import org.apache.struts2.ServletActionContext;
  9
 10 import com.entity.UserInfo;
 11 import com.opensymphony.xwork2.ActionSupport;
 12 import com.page.Page;
 13 import com.service.UserInfoService;
 14 import com.service.impl.UserInfoServiceImpl;
 15 /**
 16  * //1.获取request，session的方法1：解耦方式 ActionContext ac=
 17  * ActionContext.getContext(); //1.1将数据放给request对象集合
 18  * Map<String, Object> requestMap=(Map<String, Object>)
 19  * ac.get("request"); //就相当于setAttribute(key,value)；
 20  * requestMap.put("list", "list");
 21  *
 22  * //1.2.获取session对象集合 Map<String, Object>
 23  * sessionMap=ac.getSession(); sessionMap.put("uname",
 24  * loginlist.get(0).getUname());
 25  */
 26 public class UserInfoAction extends ActionSupport {
 27
 28     UserInfoService service = new UserInfoServiceImpl();
 29     /**
 30      * 该对象接受表单的值(代理对象通过setter和getter)
 31      */
 32     private UserInfo user;
 33     /**
 34      * 封装page对象的
 35      */
 36     private Page page;
 37
 38     /**
 39      * 1.登录
 40      *
 41      * @return
 42      */
 43     public String login() {
 44         if (user!= null) {
 45             System.out.println("参数已经接到");
 46             // 业务处理
 47             List<UserInfo> loginlist = service.getAllAndWhere(user);
 48              UserInfo useinfo=loginlist.get(0);
 49             if (useinfo != null) {
 50                 System.out.println("登录成功");
 51                     // 2.获取request，session的方法2：耦合方式
 52                     // 2.1获取request对象
 53                    HttpServletRequest request = ServletActionContext
 54                             .getRequest();
 55 //                    request.setAttribute("list", "list");
 56                     // 2.2获取session对象
 57                     HttpSession session = request.getSession();
 58                     session.setAttribute("uname", useinfo.getUname());
 59
 60               return SUCCESS;
 61
 62             } else {
 63                 System.out.println("登录失败");
 64                 return ERROR;
 65             }
 66         } else {
 67             System.out.println("参数没有接到");
 68             return ERROR;
 69         }
 70
 71     }
 72
 73     /**
 74     * 2.查询所有
 75     * @return
 76     */
 77     public String findAll(){
 78         HttpServletRequest request=ServletActionContext.getRequest();
 79
 80         //查单条
 81         Integer totalCount=service.getTotalCount();
 82         Integer pageNo=1;
 83         if(page!=null){
 84             pageNo=page.getPageno();
 85         }
 86
 87          page=new Page(2, pageNo, totalCount);
 88          System.out.println("page:"+page);
 89         //如果page对象为空=查询所有，如果page对象不为空=分页查询
 90         UserInfo u=new UserInfo(page);
 91         System.out.println("分页对象"+page);
 92         List<UserInfo> list=service.getAllAndWhere(u);
 93         if(list!=null){
 94             System.out.println("查询所有，查到了...");
 95             request.setAttribute("list", list);
 96             request.setAttribute("page", page);
 97             return SUCCESS;
 98         }else{
 99             System.out.println("查询所有，没有查到...");
100             return ERROR;
101         }
102     }
103     /**
104      *3. 根据id查询
105      * @return
106      */
107     public String findById(){
108         Integer id=user.getId();
109         if(id!=null){
110             System.out.println("id接到了..");
111
112             List<UserInfo> list=service.getAllAndWhere(user);
113             UserInfo userinfo=list.get(0);
114             if(userinfo!=null){
115                 System.out.println("根据id查到了");
116                 HttpServletRequest request=ServletActionContext.getRequest();
117                 request.setAttribute("upuser", userinfo);
118                 return SUCCESS;
119
120             }else{
121                 System.out.println("根据id没有查到");
122                 return ERROR;
123             }
124         }else{
125             System.out.println("id没有接到...");
126           return ERROR;
127         }
128
129     }
130     /**
131      * 4.注册
132      * @return
133      */
134     public String register(){
135         if(user!=null){
136             System.out.println("参数接到了..");
137             Integer num=service.saveUser(user);
138             if(num>0){
139                 System.out.println("注册成功...");
140                 return SUCCESS;
141             }else{
142                 System.out.println("注册失败...");
143                 return ERROR;
144             }
145         }else{
146             System.out.println("参数没有接到..");
147
148             return ERROR;
149         }
150     }
151     /**
152      * 5.修改
153      * @return
154      */
155     public String update(){
156         if(user!=null){
157             System.out.println("参数接到了..");
158             Integer num=service.updateUser(user);
159             if(num>0){
160                 System.out.println("修改成功");
161                 return SUCCESS;
162             }else{
163                 System.out.println("修改失败");
164                 return ERROR;
165             }
166         }else{
167             System.out.println("参数没有接到..");
168             return ERROR;
169         }
170     }
171
172     /**
173      * 6.删除
174      * @return
175      */
176     public String delete(){
177         if(user.getId()!=null){
178            System.out.println("id接到了");
179            int num=service.deleteUser(user.getId());
180            if(num>0){
181                System.out.println("删除成功");
182                return SUCCESS;
183            }else{
184                System.out.println("删除失败");
185                return ERROR;
186            }
187         }else{
188             System.out.println("id没有接到");
189             return ERROR;
190         }
191     }
192     public UserInfo getUser() {
193         return user;
194     }
195
196     public void setUser(UserInfo user) {
197         this.user = user;
198     }
199
200     public Page getPage() {
201         return page;
202     }
203
204     public void setPage(Page page) {
205         this.page = page;
206     }
207
208
209 }

UserInfoAction.java

16.在src下创建struts.xml文件

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <!DOCTYPE struts PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 2.1.7//EN" "struts-2.1.7.dtd" >
 3 <struts>
 4    <!-- 处理中文乱码 -->
 5    <constant name="struts.i18n.encoding" value="UTF-8"/>
 6
 7    <package name="default" namespace="/" extends="struts-default">
 8
 9     <!--
10             配置全局action节点的result，reuslt是公用的，
11             全局配置不能和默认配置一起使用
12     -->
13     <global-results>
14        <result name="error">error.jsp</result>
15     </global-results>
16
17     <!-- 登录，修改，删除,注册 形成一个动态调用=通配符使用 -->
18     <action name="*" class="com.action.UserInfoAction" method="{1}">
19         <result name="success" type="redirectAction">findAll</result>
20     </action>
21
22      <!-- 查询所有  -->
23      <action name="findAll" class="com.action.UserInfoAction" method="findAll">
24         <result name="success">index.jsp</result>
25      </action>
26
27       <!-- 查单条 -->
28       <action name="findById" class="com.action.UserInfoAction" method="findById">
29         <result name="success">update.jsp</result>
30      </action>
31
32
33
34
35
36      <!-- 登陆
37      <action name="login" class="com.action.UserInfoAction" method="login">
38         <result name="success" type="redirectAction">findAll</result>
39      </action>
40      -->
41
42      <!-- 修改
43      <action name="update" class="com.action.UserInfoAction" method="update">
44         <result name="success" type="redirectAction">findAll</result>
45      </action>
46      -->
47      <!-- 添加
48       <action name="register" class="com.action.UserInfoAction" method="register">
49         <result name="success">login.jsp</result>
50      </action>
51       -->
52
53        <!-- 删除
54       <action name="delete" class="com.action.UserInfoAction" method="delete">
55         <result name="success" type="redirectAction">findAll</result>
56      </action>
57       -->
58
59   </package>
60 </struts>

struts.xml

17.编辑WebRoot下WEB-INF下的web.xml文件

 1 <?xml version="1.0" encoding="UTF-8"?>
 2 <web-app version="2.5"
 3     xmlns="http://java.sun.com/xml/ns/javaee"
 4     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 5     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
 6     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
 7   <welcome-file-list>
 8     <welcome-file>login.jsp</welcome-file>
 9   </welcome-file-list>
10   <filter>
11     <filter-name>struts2</filter-name>
12     <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>
13   </filter>
14   <filter-mapping>
15     <filter-name>struts2</filter-name>
16     <url-pattern>*.action</url-pattern>
17   </filter-mapping>
18 </web-app>

web.xml

18.在WebRoot下创建js文件夹加入jquery-1.8.3.js文件

19.在WebRoot下创建login.jsp登录页面

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11
12     <title>My JSP ‘index.jsp‘ starting page</title>
13     <meta http-equiv="pragma" content="no-cache">
14     <meta http-equiv="cache-control" content="no-cache">
15     <meta http-equiv="expires" content="0">
16     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
17     <meta http-equiv="description" content="This is my page">
18     <!--
19     <link rel="stylesheet" type="text/css" href="styles.css">
20     -->
21   </head>
22
23   <body>
24     <center>
25       <fieldset style="width:300px">
26         <legend>登录</legend>
27         <form action="login.action" method="post">
28           <table>
29             <tr>
30               <td>用户名:</td>
31               <td><input type="text" name="user.uname"/></td>
32             </tr>
33             <tr>
34               <td>密码：</td>
35               <td><input type="password" name="user.password"/></td>
36             </tr>
37             <tr>
38               <td><input type="submit" value="登录"/></td>
39             </tr>
40           </table>
41         </form>
42       </fieldset>
43     </center>
44   </body>
45 </html>

login.jsp

20.在WebRoot下创建index.jsp首页面

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
 3 <%
 4 String path = request.getContextPath();
 5 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 6 %>
 7
 8 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 9 <html>
10   <head>
11     <base href="<%=basePath%>">
12
13     <title>My JSP ‘index.jsp‘ starting page</title>
14     <meta http-equiv="pragma" content="no-cache">
15     <meta http-equiv="cache-control" content="no-cache">
16     <meta http-equiv="expires" content="0">
17     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
18     <meta http-equiv="description" content="This is my page">
19     <script type="text/javascript" src="js/jquery-1.8.3.js"></script>
20     <script type="text/javascript">
21       $(function(){
22         $("tr:odd").css("background-color","#ccc");
23       });
24     </script>
25   </head>
26
27   <body>
28     <center>
29      <h1>欢迎${uname}登录成功！</h1>
30       <table>
31         <tr><td colspan="2"><a href="register.jsp">注册</a></td></tr>
32         <tr><td>编号</td><td>姓名</td><td>密码</td><td>操作</td></tr>
33         <c:forEach var="i" items="${list}">
34         <tr><td>${i.id}</td><td>${i.uname}</td><td>${i.password}</td>
35         <td><a href="findById.action?user.id=${i.id}">修改</a>&nbsp;|&nbsp;<a href="delete.action?user.id=${i.id}">删除</a></td></tr>
36         </c:forEach>
37       </table>
38       当前第${page.pageno}/${page.totalpage }页 &nbsp;&nbsp;
39       <a href="findAll.action?page.pageno=1">首页</a> &nbsp;&nbsp;
40       <c:choose>
41         <c:when test="${page.pageno > 1}">
42           <a href="findAll.action?page.pageno=${page.pageno-1}">上一页</a> &nbsp;&nbsp;
43
44         </c:when>
45         <c:otherwise>
46          <a href="javascript:alert(‘已经是第一页！‘);">上一页</a> &nbsp;&nbsp;
47         </c:otherwise>
48       </c:choose>
49       <c:choose>
50         <c:when test="${page.pageno<page.totalpage}">
51         <a href="findAll.action?page.pageno=${page.pageno+1}">下一页</a> &nbsp;&nbsp;
52
53         </c:when>
54         <c:otherwise>
55           <a href="javascript:alert(‘已经是最后一页！‘);">上一页</a> &nbsp;&nbsp;
56
57         </c:otherwise>
58       </c:choose>
59
60       <a href="findAll.action?page.pageno=${page.totalpage}">末页</a>
61     </center>
62   </body>
63 </html>

index.jsp

21.在WebRoot下创建register.jsp注册页面

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11
12     <title>My JSP ‘index.jsp‘ starting page</title>
13     <meta http-equiv="pragma" content="no-cache">
14     <meta http-equiv="cache-control" content="no-cache">
15     <meta http-equiv="expires" content="0">
16     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
17     <meta http-equiv="description" content="This is my page">
18     <!--
19     <link rel="stylesheet" type="text/css" href="styles.css">
20     -->
21   </head>
22
23   <body>
24     <center>
25       <fieldset style="width:300px">
26         <legend>注册</legend>
27         <form action="register.action" method="post">
28           <table>
29             <tr>
30               <td>用户名:</td>
31               <td><input type="text" name="user.uname"/></td>
32             </tr>
33             <tr>
34               <td>密码：</td>
35               <td><input type="password" name="user.password"/></td>
36             </tr>
37             <tr>
38               <td><input type="submit" value="注册"/></td>
39             </tr>
40           </table>
41         </form>
42       </fieldset>
43     </center>
44   </body>
45 </html>

register.jsp

22.在WebRoot下创建update.jsp修改页面

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11
12     <title>My JSP ‘index.jsp‘ starting page</title>
13     <meta http-equiv="pragma" content="no-cache">
14     <meta http-equiv="cache-control" content="no-cache">
15     <meta http-equiv="expires" content="0">
16     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
17     <meta http-equiv="description" content="This is my page">
18     <!--
19     <link rel="stylesheet" type="text/css" href="styles.css">
20     -->
21   </head>
22
23   <body>
24     <center>
25       <fieldset style="width:300px">
26         <legend>修改用户信息</legend>
27         <form action="update.action?user.id=${upuser.id}" method="post">
28           <table>
29             <tr>
30               <td>用户名:</td>
31               <td><input type="text" name="user.uname" value="${upuser.uname}"/></td>
32             </tr>
33             <tr>
34               <td>密码：</td>
35               <td><input type="password" name="user.password" value="${upuser.password}"/></td>
36             </tr>
37             <tr>
38               <td><input type="submit" value="注册"/></td>
39             </tr>
40           </table>
41         </form>
42       </fieldset>
43     </center>
44   </body>
45 </html>

update.jsp

23.在error.jsp下创建error.jsp错误页面

 1 <%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%>
 2 <%
 3 String path = request.getContextPath();
 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
 5 %>
 6
 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
 8 <html>
 9   <head>
10     <base href="<%=basePath%>">
11
12     <title>My JSP ‘index.jsp‘ starting page</title>
13     <meta http-equiv="pragma" content="no-cache">
14     <meta http-equiv="cache-control" content="no-cache">
15     <meta http-equiv="expires" content="0">
16     <meta http-equiv="keywords" content="keyword1,keyword2,keyword3">
17     <meta http-equiv="description" content="This is my page">
18     <!--
19     <link rel="stylesheet" type="text/css" href="styles.css">
20     -->
21   </head>
22
23   <body>
24        业务处理失败！！
25   </body>
26 </html>

error.jsp

24.运行结果如下