需求说明
实现用户通过数据库验证登录需求。採用 Myeclipse+Tomcat 6.0+Mysql 5.0+JDK 1.6
2.数据库表
开发所用是Mysql数据库,仅仅建立单张用户表T_USER,表结构例如以下：
|
字段名称 |
数据类型 |
字段描写叙述 |
|
ID |
int |
用户编号 |
|
USERNAME |
VARCHAR |
username |
|
PASSWORD |
VARCHAR |
用户登录password |
sql语句例如以下：
CREATE TABLE `t_user` (
`ID` int(11) NOT NULL auto_increment,
`USERNAME` varchar(255) default NULL,
`PASSWORD` varchar(255) default NULL,
PRIMARY KEY (`ID`)
);
3.构建源码文件夹
5.各项Xml配置文件具体解释
(1)web.xml文件(Tomcat使用)
server依据配置内容初始化spring框架。springmvc框架和log4j日志框架<pre name="code" class="html"><?xml version="1.0" encoding="UTF-8"?>
<web-app version="2.5"
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_2_5.xsd">
<!-- 应用程序名称 -->
<display-name>ISS</display-name>
<!-- 应用程序描写叙述说明性文字 -->
<description>Spring,SpringMvc,Ibatis</description>
<!-- ServletContext初始化參数 -->
<context-param>
<param-name>webAppRootKey</param-name>
<param-value>spring_springmvc_ibatis.root</param-value>
</context-param>
<context-param>
<param-name>log4jConfigLocation</param-name>
<param-value>/WEB-INF/classes/log4j.properties</param-value>
</context-param>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/applicationContext.xml</param-value>
</context-param>
<!-- 字符过滤,防止加入到数据库的数据为乱码 -->
<filter>
<filter-name>characterEncodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>characterEncodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- web权限配置 -->
<filter>
<filter-name>springSecurityFilterChain</filter-name>
<filter-class>org.springframework.web.filter.DelegatingFilterProxy</filter-class>
</filter>
<filter-mapping>
<filter-name>springSecurityFilterChain</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<!-- 配置监听器,用于初始化 -->
<listener>
<listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>
</listener>
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!-- Servlet初始化參数,配置springmvc模块 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>/WEB-INF/classes/springmvc-servlet.xml</param-value>
</init-param>
<load-on-startup>2</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 配置session存在时间 -->
<session-config>
<session-timeout>60</session-timeout>
</session-config>
<!-- 默认起始页面 -->
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<!-- 异常跳转页面 -->
<error-page>
<exception-type>java.lang.Exception</exception-type>
<location>/WEB-INF/jsp/exception.jsp</location>
</error-page>
</web-app>
(2)springmvc-servlet.xml(Springmvc框架配置文件)
该文件是springmvc框架配置文件，也是它的核心文件
<?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:mvc="http://www.springframework.org/schema/mvc" 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/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd"> <!-- 自己主动扫描,完毕bean创建和依赖注入 --> <context:component-scan base-package="com.archie"/> <!-- 启动Spring MVC的注解功能，完毕请求和注解POJO的映射 --> <bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"/> <!-- 视图解析器 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView"/> <property name="prefix" value="/WEB-INF/views/"/> <property name="suffix" value=".jsp"/> </bean> <!-- 异常解析器 --> <bean id="simpleMappingExceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver"> <property name="exceptionMappings"> <props> <prop key="org.springframework.web.multipart.MaxUploadSizeExceededException">common/fileerror</prop> </props> </property> </bean> </beans>
(3)applicationContext.xml(Spring框架配置文件)
<?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:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation=" http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-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/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" default-autowire="byName"> <!-- 自己主动扫描 --> <context:component-scan base-package="com.archie"/> <!-- 启动spring注解,当自己主动扫描启动后,该配置能够去掉 <context:annotation-config /> --> <!-- 启动spring注解,等同于 context:annotation-config <bean class="org.springframework.context.annotation.CommonAnnotationBeanPostProcessor"/> <bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"/> <bean class="org.springframework.beans.factory.annotation.PersistenceAnnotationBeanPostProcessor"/> <bean class="org.springframework.beans.factory.annotation.RequiredAnnotationBeanPostProcessor"/> --> <!-- 配置数据源属性文件 --> <bean id="propertyConfigurer" class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer"> <property name="locations"> <list> <value>jdbc.properties</value> </list> </property> </bean> <!-- 配置数据源 --> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource"> <property name="driverClassName" value="${driver}"/> <property name="url" value="${url}"/> <property name="username" value="${username}"/> <property name="password" value="${password}"/> </bean> <!-- 配置SqlMapClient对象 --> <bean id="sqlMapClient" class="org.springframework.orm.ibatis.SqlMapClientFactoryBean"> <property name="configLocation" value="sqlMapConfig.xml"/> <property name="dataSource" ref="dataSource"/> </bean> <!--依据sqlMapClien创建一个SqlMapClient模版类--> <bean id="sqlMapClientTemplate" class="org.springframework.orm.ibatis.SqlMapClientTemplate"> <property name="sqlMapClient" ref="sqlMapClient"/> </bean> <!-- 配置事务管理器 --> <bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <property name="dataSource" ref="dataSource"/> </bean> <!-- 启动spring事务注解，事务注解尽在此 --> <tx:annotation-driven transaction-manager="transactionManager"/> <!-- 配置事务特性 <tx:advice id="txAdvice" transaction-manager="transactionManager"> <tx:attributes> <tx:method name="select*" read-only="true" propagation="REQUIRED"/> <tx:method name="find*" read-only="true" propagation="REQUIRED"/> <tx:method name="save*" propagation="REQUIRED" isolation="REPEATABLE_READ"/> <tx:method name="update*" propagation="REQUIRED" isolation="REPEATABLE_READ"/> <tx:method name="add*" propagation="REQUIRED" isolation="REPEATABLE_READ"/> <tx:method name="delete*" propagation="REQUIRED" isolation="REPEATABLE_READ"/> <tx:method name="*" read-only="true"/> </tx:attributes> </tx:advice> --> <!-- 配置事务代理拦截器 <bean id="baseTransactionProxy" abstract="true" class="org.springframework.transaction.interceptor.TransactionProxyFactoryBean"> <property name="transactionManager"> <ref bean="transactionManager"/> </property> <property name="transactionAttributes"> <props> <prop key="insert*">PROPAGATION_REQUIRED</prop> <prop key="update*">PROPAGATION_REQUIRED</prop> <prop key="delete*">PROPAGATION_REQUIRED</prop> <prop key="*">PROPAGATION_REQUIRED,readOnly</prop> </props> </property> </bean> --> <!-- 配置哪些类的方法须要进行事务管理 <aop:config> <aop:pointcut id="baseServiceMethods" expression="execution(* com.archie.service.*.*(..))"/> <aop:advisor advice-ref="txAdvice" pointcut-ref="baseServiceMethods"/> </aop:config> <aop:aspectj-autoproxy /> --> <!-- 配置Dao实例 <bean id="userDao" class="com.archie.dao.UserDao"> <property name="sqlMapClient" ref="sqlMapClient"/> </bean> --> <!-- 配置Service实例 <bean id="userService" class="com.archie.service.UserService"> <property name="userDao" ref="userDao"/> </bean> --> <!-- 加入了事务的管理类 <bean id="userManager" parent="baseTransactionProxy"> <property name="target"> <bean class="com.archie.service.UserService"/> </property> </bean> --> </beans>
(4)jdbc.properties(数据源属性文件)
数据源连接信息的源出处。眼下配置了三种数据库Oracle，DB2和Mysql
# Database Connectivity # Oracle #driver = oracle.jdbc.driver.OracleDriver #url = jdbc:oracle:thin:@localhost:1521:oracl #username = scott #password = tiger # DB2 #driver = com.ibm.db2.jcc.DB2Driver #url = jdbc:db2://10.1.10.162:50000/mydb #username = root #password = root # Mysql driver = com.mysql.jdbc.Driver url = jdbc:mysql://localhost:3306/mydb?useUnicode=true&characterEncoding=utf-8 username = root password = 1234 initialPoolSize = 1 minPoolSize = 1 maxPoolSize =10
(5)log4j.properties(log4j框架属性文件)
log4j日志属性配置文件
# log4j.properties log4j.rootLogger=warn,console log4j.appender.console=org.apache.log4j.ConsoleAppender log4j.appender.console.layout=org.apache.log4j.PatternLayout log4j.appender.console.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n log4j.appender.console.Encoding=GB18030 log4j.appender.file=org.apache.log4j.RollingFileAppender log4j.appender.file.MaxFileSize=10240KB log4j.appender.file.MaxBackupIndex=100 log4j.appender.file.Encoding=GB18030 log4j.appender.file.layout=org.apache.log4j.PatternLayout log4j.appender.file.layout.ConversionPattern=[%d] [%t] (%F:%L) %-5p %c - %m%n log4j.appender.ROLLING_FILE_CUSTOMER=org.apache.log4j.RollingFileAppender log4j.appender.ROLLING_FILE_CUSTOMER.Threshold=debug log4j.appender.ROLLING_FILE_CUSTOMER.Append=true log4j.appender.ROLLING_FILE_CUSTOMER.MaxFileSize=1024KB log4j.appender.ROLLING_FILE_CUSTOMER.MaxBackupIndex=30 log4j.appender.ROLLING_FILE_CUSTOMER.layout=org.apache.log4j.PatternLayout log4j.appender.ROLLING_FILE_CUSTOMER.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n log4j.appender.ROLLING_FILE_WORKMANAGER=org.apache.log4j.RollingFileAppender log4j.appender.ROLLING_FILE_WORKMANAGER.Threshold=debug log4j.appender.ROLLING_FILE_WORKMANAGER.Append=true log4j.appender.ROLLING_FILE_WORKMANAGER.MaxFileSize=1024KB log4j.appender.ROLLING_FILE_WORKMANAGER.MaxBackupIndex=30 log4j.appender.ROLLING_FILE_WORKMANAGER.layout=org.apache.log4j.PatternLayout log4j.appender.ROLLING_FILE_WORKMANAGER.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n log4j.appender.ROLLING_FILE_RSS=org.apache.log4j.RollingFileAppender log4j.appender.ROLLING_FILE_RSS.Threshold=debug log4j.appender.ROLLING_FILE_RSS.Append=true log4j.appender.ROLLING_FILE_RSS.MaxFileSize=1024KB log4j.appender.ROLLING_FILE_RSS.MaxBackupIndex=30 log4j.appender.ROLLING_FILE_RSS.layout=org.apache.log4j.PatternLayout log4j.appender.ROLLING_FILE_RSS.layout.ConversionPattern=%d - %c:%L - %-5p %c %x - %m%n
(6)sqlMapConfig.xml(Ibatis框架配置文件)
该文件主要负责指定sql映射文件，即与model层对象相应的映射文件
<?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE sqlMapConfig PUBLIC "-//iBATIS.com//DTD SQL Map Config 2.0//EN" "http://www.ibatis.com/dtd/sql-map-config-2.dtd"> <sqlMapConfig> <!-- 配置settings --> <settings lazyLoadingEnabled="true" useStatementNamespaces="false"/> <!-- 配置sql映射文件 --> <sqlMap resource="com/archie/model/User.xml"/> </sqlMapConfig>
6.Java代码编写
依据包文件夹，能够看出分成model层,dao层,service层和web层,另外附加test层,用于java环境測试
(1)model层(User.java+User.xml)
User.java代码
package com.archie.model;
public class User {
private int id;
private String username;
private String password;
public User(){
}
public User(int id){
this.id = id;
}
public User(int id, String username){
this.id = id;
this.username = username;
}
public User(String username, String password) {
this.username = username;
this.password = password;
}
public User(int id, String username, String password){
this.id = id;
this.username = username;
this.password = password;
}
public int getId() {
return id;
}
public void setId(int id) {
this.id = id;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}
}User.xml代码(model层对象的sql映射文件,被dao层调用,本质是sql语句集合,全部相关的sql均于此)<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE sqlMap PUBLIC "-//ibatis.apache.org//DTD SQL Map 2.0//EN"
"http://ibatis.apache.org/dtd/sql-map-2.dtd">
<sqlMap namespace="User">
<typeAlias alias="User" type="com.archie.model.User"/>
<select id="findAllUser" resultClass="User" >
select * from t_user
</select>
<select id="findUserByID" resultClass="User" parameterClass="int">
select * from t_user where id=#id#
</select>
<select id="getTotalCount" resultClass="int">
select count(*) from t_user
</select>
<select id="searchUsers" resultClass="User" parameterClass="User">
select * from t_user
<dynamic prepend="where">
<!-- 模糊查询，用$表示文本替换，而用#表示替换PrepareStatement中的?号 -->
<isNotEmpty prepend="and" property="username">
(username like '%$username$%')
</isNotEmpty>
<isNotEmpty prepend="and" property="password">
(password like '%$password$%')
</isNotEmpty>
</dynamic>
</select>
<select id="findUserByNameAndPassword" resultClass="User" parameterClass="User">
select * from t_user where username=#username# and password=#password#
</select>
<insert id="insertUser" parameterClass="User">
insert into t_user(id,username,password) values(null,#username#,#password#)
</insert>
<update id="updateUser" parameterClass="User">
update t_user
set username = #username#,
password=#password#
where id=#id#
</update>
<delete id="deleteUser" parameterClass="int">
delete from t_user where id=#id#
</delete>
<delete id="deleteUserByLike" parameterClass="User">
delete from t_user
<dynamic prepend="where">
<!-- 模糊查询，用$表示文本替换，而用#表示替换PrepareStatement中的?号 -->
<isNotEmpty prepend="and" property="username">
(username like '%$username$%')
</isNotEmpty>
<isNotEmpty prepend="and" property="password">
(password like '%$password$%')
</isNotEmpty>
</dynamic>
</delete>
</sqlMap>
(2)dao层(数据服务层,BaseDao.java+UserDao.java)
BaseDao.java(公共Dao,其它Dao均继承它)
package com.archie.dao;
import javax.annotation.PostConstruct;
import javax.annotation.Resource;
import org.springframework.orm.ibatis.support.SqlMapClientDaoSupport;
import com.ibatis.sqlmap.client.SqlMapClient;
public class BaseDao extends SqlMapClientDaoSupport {
@Resource(name="sqlMapClient") //通过bean名称注入
private SqlMapClient sqlMapClient;
@PostConstruct //完毕sqlMapClient初始化工作
public void initSqlMapClient(){
super.setSqlMapClient(sqlMapClient);
}
}
UserDao.java(user数据服务层)
package com.archie.dao;
import java.util.List;
import org.springframework.stereotype.Component;
import com.archie.model.User;
@Component //将UserDao类注入到bean里面
public class UserDao extends BaseDao {
public boolean addUser(User user) throws Exception{
User bean = (User)getSqlMapClientTemplate().insert("insertUser", user);
return bean != null ? true : false;
}
public boolean deleteUser(int id) throws Exception{
int result = getSqlMapClientTemplate().delete("deleteUser", id);
return result > 0 ? true : false;
}
public User getUserById(int id) throws Exception{
return (User)getSqlMapClientTemplate().queryForObject("findUserByID", id);
}
@SuppressWarnings("unchecked")
public List getAllUsers() throws Exception{
return getSqlMapClientTemplate().queryForList("findAllUser");
}
public boolean updateUser(User user) throws Exception{
int result = getSqlMapClientTemplate().update("updateUser", user);
return result > 0 ? true : false;
}
public User getUserByNameAndPassword(User user) throws Exception{
return (User)getSqlMapClientTemplate().queryForObject("findUserByNameAndPassword", user);
}
public int getTotalCount() throws Exception{
return (Integer)getSqlMapClientTemplate().queryForObject("getTotalCount");
}
@SuppressWarnings("unchecked")
public List getUsersByLike(User user) throws Exception{
return getSqlMapClientTemplate().queryForList("searchUsers", user);
}
public int deleteUserByLike(User user) throws Exception{
int result = getSqlMapClientTemplate().delete("deleteUserByLike", user);
if (result > 0) {
System.out.println("模糊删除成功。");
}else {
System.out.println("没有匹配的记录1");
}
return result;
}
}(3)service层(业务服务层,UserService.java)
UserService.java代码例如以下
package com.archie.service;
import java.util.List;
import javax.annotation.Resource;
import org.springframework.stereotype.Component;
import org.springframework.transaction.annotation.Transactional;
import com.archie.dao.UserDao;
import com.archie.model.User;
@Component //将UserService类注入到bean里面
@Transactional //注入事务管理
public class UserService {
@Resource(name="userDao") // 通过名称注入到bean里面
private UserDao userDao;
public User login(User user) throws Exception{
return userDao.getUserByNameAndPassword(user);
}
public void addUser(User user) throws Exception{
userDao.addUser(user);
}
public void deleteUser(int id) throws Exception{
boolean bool = userDao.deleteUser(id);
if (!bool) {
System.out.println("删除的记录不存在！");
throw new RuntimeException();
}
}
public User getUserById(int id) throws Exception{
User user = userDao.getUserById(id);
if (user == null) {
return null;
}
return userDao.getUserById(id);
}
public void updateUser(User user) throws Exception{
userDao.updateUser(user);
}
public int getTotalCount() throws Exception{
return userDao.getTotalCount();
}
@SuppressWarnings("unchecked")
public List getUsersByLike(User user) throws Exception{
return userDao.getUsersByLike(user);
}
public int deleteUserByLike(User user) throws Exception{
return userDao.deleteUserByLike(user);
}
public void insertUsers(List<User> list) throws Exception{
for (int i = 0; i < list.size(); i++) {
if (i > 3) {
System.out.println("列表太长，中断事务");
throw new RuntimeException("中断事务异常,当列表长度大于3的时候有益抛出。看看事务是否回滚");
}
User user = list.get(i);
userDao.addUser(user);
}
}
}
(4)web层(界面控制层,UserController.java)
UserController.java
package com.archie.web;
import javax.annotation.Resource;
import javax.servlet.http.HttpSession;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.validation.BindingResult;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.servlet.ModelAndView;
import com.archie.model.User;
import com.archie.service.UserService;
@Controller
@RequestMapping("/user/*")
public class UserController {
@Resource(name="userService")
private UserService userService;
private final String LIST="redirect:/detail";
/**
* 登录
* @param user
* @param session
* @return
*/
@RequestMapping("/login")
public ModelAndView login(@Valid User user,BindingResult result,HttpSession session) throws Exception{
if(!result.hasErrors()){
User loginUser=userService.login(user);
if(loginUser!=null){
session.setAttribute("USER", loginUser);
return new ModelAndView(LIST);
}else{
return new ModelAndView("redirect:/");
}
}else{
ModelAndView view=new ModelAndView();
view.setViewName("redirect:/");
view.addObject("error", result.getAllErrors());
return view;
}
}
/**
* 跳转至加入页
* @return
*/
@RequestMapping(value="/toAdd",method=RequestMethod.GET)
public ModelAndView toAdd(){
return new ModelAndView("user/add");
}
/**
* 保存
* @param user
* @return
*/
@RequestMapping(value="/add",method=RequestMethod.POST)
public ModelAndView add(@Valid User user,BindingResult result) throws Exception{
if(result.hasErrors()){
return new ModelAndView("user/add","error", result.getAllErrors());
}else{
userService.addUser(user);
return new ModelAndView(LIST);
}
}
/**
* 依据ID删除
* @param id
* @return
*/
@RequestMapping(value="/delete/{id}")
public ModelAndView delete(@PathVariable int id) throws Exception{
userService.deleteUser(id);
return new ModelAndView(LIST);
}
/**
* 跳转至编辑页面
* @param id
* @return
*/
@RequestMapping(value="/edit/{id}")
public ModelAndView edit(@PathVariable int id) throws Exception{
User user=userService.getUserById(id);
return new ModelAndView("user/edit","user",user);
}
/**
* 编辑
* @param user
* @return
*/
@RequestMapping(value="/edit")
public ModelAndView update(@Valid User user,BindingResult result)throws Exception{
ModelAndView view=new ModelAndView();
if(result.hasErrors()){
view.addObject("error", result.getAllErrors());
view.setViewName("user/edit");
return view;
}else{
userService.updateUser(user);
return new ModelAndView(LIST);
}
}
}(5)test层(Java环境下測试)
TestUserController.java