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SpringMVC+SpringJDBC搭建的项目Demo

2015-04-10 22:53 441 查看
概要：

一、项目目录

二、配置详情

三、测试代码

四、测试结果

内容：

一、项目目录





二、配置详情

web.xml

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd" 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></display-name>
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>

<!-- Spring监听 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>

<!-- ApplicationContext 的Listener配置方式  start-->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:applicationContext.xml</param-value>
</context-param>
<!-- ApplicationContext 的Listener配置方式  end-->

<!-- springmvc -->
<servlet>
<servlet-name>spring</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 自定义spring mvc的配置文件名称和路径 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-servlet.xml</param-value>
</init-param>
<!-- 自定义启动顺序，让这个Servlet随Servlet容器一起启动 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>

<!-- 编码过虑 -->
<filter>
<filter-name>setcharacter</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>
</filter>
<filter-mapping>
<filter-name>setcharacter</filter-name>
<url-pattern>/</url-pattern>
</filter-mapping>

<!-- 解决HTTP PUT请求Spring无法获取请求参数的问题 -->
<filter>
<filter-name>HiddenHttpMethodFilter</filter-name>
<filter-class>org.springframework.web.filter.HiddenHttpMethodFilter</filter-class>
</filter>
<filter-mapping>
<filter-name>HiddenHttpMethodFilter</filter-name>
<servlet-name>springMVC3</servlet-name>
</filter-mapping>
</web-app>


applicationContext.xml

<?xml version="1.0" encoding="UTF-8" ?>
<beans
xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schem
20000
a/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-4.1.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.0.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd"> 
<!-- 加载JDBC配置文件 -->
<context:property-placeholder location="classpath:jdbc.properties" />

<!-- 扫描类包，将标注Spring注解的类自动转化Bean，同时完成Bean的注入 -->
<context:component-scan base-package="com.service" />
<context:component-scan base-package="com.dao" />

<!-- 配置数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass">
<value>${jdbc.driverClassName}</value>
</property>
<property name="jdbcUrl">
<value>${jdbc.url}</value>
</property>
<property name="user">
<value>${jdbc.username}</value>
</property>
<property name="password">
<value>${jdbc.password}</value>
</property>
<!--连接池中保留的最小连接数。 -->
<property name="minPoolSize">
<value>5</value>
</property>
<!--连接池中保留的最大连接数。Default: 15 -->
<property name="maxPoolSize">
<value>30</value>
</property>
<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
<property name="initialPoolSize">
<value>10</value>
</property>
<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
<property name="maxIdleTime">
<value>60</value>
</property>
<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
<property name="acquireIncrement">
<value>5</value>
</property>
<!--JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements 属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。
如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 -->
<property name="maxStatements">
<value>0</value>
</property>
<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
<property name="idleConnectionTestPeriod">
<value>60</value>
</property>
<!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->
<property name="acquireRetryAttempts">
<value>30</value>
</property>
<!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效 保留，并在下次调用getConnection()的时候继续尝试获取连接。如果设为true，那么在尝试
获取连接失败后该数据源将申明已断开并永久关闭。Default: false -->
<property name="breakAfterAcquireFailure">
<value>true</value>
</property>
<!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的 时候都将校验其有效性。建议使用idleConnectionTestPeriod或automaticTestTable
等方法来提升连接测试的性能。Default: false -->
<property name="testConnectionOnCheckout">
<value>false</value>
</property>
</bean>

<!-- 配置Jdbc模板 -->
<bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean>

<!-- 提供对lob字段的支持 -->
<bean id="nativeJdbcExtractor"
class="org.springframework.jdbc.support.nativejdbc.CommonsDbcpNativeJdbcExtractor"
lazy-init="true" />

<!--如果底层数据库是 DB2、SQL Server、MySQL 等非 Oracle 的其它数据库，则只要简单配置一个 DefaultLobHandler-->
<bean id="lobHandler"
class="org.springframework.jdbc.support.lob.DefaultLobHandler"
lazy-init="true" />

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

<!-- 通过AOP配置提供事务增强，让service包下所有Bean的所有方法拥有事务 -->
<!--  <aop:config proxy-target-class="true">
<aop:pointcut id="serviceMethod"
expression=" execution(* com.service..*(..))" />
<aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice" />
</aop:config>
<tx:advice id="txAdvice" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="*" />
</tx:attributes>
</tx:advice> -->

</beans>


spring-servlet.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:jee="http://www.springframework.org/schema/jee"
xmlns:context="http://www.springframework.org/schema/context" xmlns:p="http://www.springframework.org/schema/p"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.1.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd http://www.springframework.org/schema/jee http://www.springframework.org/schema/jee/spring-jee-4.1.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-4.1.xsd http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-4.1.xsd"> 
<context:annotation-config />
<context:component-scan base-package="com.controller" />
<context:component-scan base-package="com.service" />
<context:component-scan base-package="com.dao" />

<!-- 注解驱动 -->
<mvc:annotation-driven />
<mvc:resources mapping="/resources/**" location="/resources/" />

<!-- 视图解析 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/views/" />
<property name="suffix" value=".jsp" />
</bean>

<!-- Invokes Spring MVC @Controller methods -->
<bean class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="webBindingInitializer">
<!-- Configures Spring MVC DataBinder instances -->
<bean class="org.springframework.web.bind.support.ConfigurableWebBindingInitializer">
<property name="validator" ref="validator" />
</bean>
</property>

<!-- <property name="messageConverters">
<util:list id="beanList">
<ref bean="mappingJacksonHttpMessageConverter"/>
</util:list>
</property>   -->
</bean>

<!-- 输出对象转JSON支持 -->
<bean id="jsonConverter"
class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"></bean>
<bean
class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter">
<property name="messageConverters">
<list>
<ref bean="jsonConverter" />
</list>
</property>
</bean>

<!-- <bean id="mappingJacksonHttpMessageConverter" class="org.springframework.http.converter.json.MappingJacksonHttpMessageConverter">
<property name="supportedMediaTypes">
<list>
<value>text/html;charset=UTF-8</value>
</list>
</property>
</bean>   -->

<!-- Creates the JSR-303 Validator -->
<bean id="validator" class="org.springframework.validation.beanvalidation.LocalValidatorFactoryBean" />

<!-- 配置一个MultipartResolver，在这里我们使用支持Commons FileUpload的CommonsMultipartResolver:  -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver" p:defaultEncoding="utf-8" p:maxUploadSize="5000000"/>

<!-- 全局异常配置 start -->
<bean id="exceptionResolver" class="org.springframework.web.servlet.handler.SimpleMappingExceptionResolver">
<property name="exceptionMappings">
<props>
<prop key="com.exception.UserException">errors/error</prop>
<prop key="java.lang.Exception">errors/error</prop>
<prop key="java.lang.Throwable">errors/err</prop>
</props>
</property>
<property name="statusCodes">
<props>
<prop key="errors/error">500</prop>
<prop key="errors/404">404</prop>
</props>
</property>
<!-- 设置日志输出级别，不定义则默认不输出警告等错误日志信息      -->
<property name="warnLogCategory" value="WARN"></property>
<!-- 默认错误页面，当找不到上面mappings中指定的异常对应视图时，使用本默认配置 -->
<property name="defaultErrorView" value="errors/error"></property>
<!-- 默认HTTP状态码    -->
<property name="defaultStatusCode" value="500"></property>
</bean>
<!-- 全局异常配置 end -->

<!-- 加载JDBC配置文件 -->
<context:property-placeholder location="classpath:jdbc.properties" />

<!-- 扫描类包，将标注Spring注解的类自动转化Bean，同时完成Bean的注入 -->
<context:component-scan base-package="com.service" />
<context:component-scan base-package="com.dao" />

<!-- 配置数据源 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource"
destroy-method="close">
<property name="driverClass">
<value>${jdbc.driverClassName}</value>
</property>
<property name="jdbcUrl">
<value>${jdbc.url}</value>
</property>
<property name="user">
<value>${jdbc.username}</value>
</property>
<property name="password">
<value>${jdbc.password}</value>
</property>
<!--连接池中保留的最小连接数。 -->
<property name="minPoolSize">
<value>5</value>
</property>
<!--连接池中保留的最大连接数。Default: 15 -->
<property name="maxPoolSize">
<value>30</value>
</property>
<!--初始化时获取的连接数，取值应在minPoolSize与maxPoolSize之间。Default: 3 -->
<property name="initialPoolSize">
<value>10</value>
</property>
<!--最大空闲时间,60秒内未使用则连接被丢弃。若为0则永不丢弃。Default: 0 -->
<property name="maxIdleTime">
<value>60</value>
</property>
<!--当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。Default: 3 -->
<property name="acquireIncrement">
<value>5</value>
</property>
<!--JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements 属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。
如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。Default: 0 -->
<property name="maxStatements">
<value>0</value>
</property>
<!--每60秒检查所有连接池中的空闲连接。Default: 0 -->
<property name="idleConnectionTestPeriod">
<value>60</value>
</property>
<!--定义在从数据库获取新连接失败后重复尝试的次数。Default: 30 -->
<property name="acquireRetryAttempts">
<value>30</value>
</property>
<!--获取连接失败将会引起所有等待连接池来获取连接的线程抛出异常。但是数据源仍有效 保留，并在下次调用getConnection()的时候继续尝试获取连接。如果设为true，那么在尝试
获取连接失败后该数据源将申明已断开并永久关闭。Default: false -->
<property name="breakAfterAcquireFailure">
<value>true</value>
</property>
<!--因性能消耗大请只在需要的时候使用它。如果设为true那么在每个connection提交的 时候都将校验其有效性。建议使用idleConnectionTestPeriod或automaticTestTable
等方法来提升连接测试的性能。Default: false -->
<property name="testConnectionOnCheckout">
<value>false</value>
</property>
</bean>

<!-- 配置Jdbc模板 -->
<!-- <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate">
<property name="dataSource" ref="dataSource"></property>
</bean> -->
</beans>


jdbc.properties

jdbc.driverClassName=com.mysql.jdbc.Driver
jdbc.url=jdbc:mysql://localhost:3306/test
jdbc.username=root
jdbc.password=root


log4j.properties

log4j.rootLogger=DEBUG,A1
# \u8f93\u51fa\u5230\u63a7\u5236\u53f0
log4j.appender.A1=org.apache.log4j.ConsoleAppender
log4j.appender.A1.layout=org.apache.log4j.PatternLayout
log4j.appender.A1.layout.ConversionPattern=%d{yyyy-MM-dd HH\:mm\:ss} [\u65E5\u5FD7\u4FE1\u606F] %m%n


pom.xml

<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.typ.spring</groupId>
<artifactId>maven-springmvc-springjdbc</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>maven-springmvc-springjdbc Maven Webapp</name>
<url>http://maven.apache.org</url>

<properties>
<spring.version>4.1.4.RELEASE</spring.version>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.11</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${spring.version}</version>
<scope>test</scope>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</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-web</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.8.5</version>
</dependency>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.35</version>
</dependency>

<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5</version>
</dependency>

<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>

<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-validator</artifactId>
<version>5.1.2.Final</version>
</dependency>

<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.3.1</version>
</dependency>

<!-- json -->
<dependency>
<groupId>com.fasterxml.jackson.core</groupId>
<artifactId>jackson-databind</artifactId>
<version>2.5.2</version>
</dependency>
<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-core-asl</artifactId>
<version>1.9.13</version>
</dependency>

<dependency>
<groupId>org.codehaus.jackson</groupId>
<artifactId>jackson-mapper-asl</artifactId>
<version>1.9.13</version>
</dependency>
<!-- json -->

<dependency>
<groupId>com.thoughtworks.xstream</groupId>
<artifactId>xstream</artifactId>
<version>1.4.7</version>
</dependency>

</dependencies>
<build>
<finalName>maven-springmvc-springjdbc</finalName>

<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>2.3.2</version>
<configuration>
<source>1.7</source>
<target>1.7</target>
</configuration>
</plugin>
</plugins>
</build>
</project>


三、测试代码

1.controller:

UserController.java

package com.controller;

import java.io.File;
import java.io.IOException;
import java.util.HashMap;
import java.util.Map;

import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpSession;

import org.apache.commons.io.FileUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.BindingResult;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.ExceptionHandler;
import org.springframework.web.bind.annotation.ModelAttribute;
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.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.multipart.MultipartFile;

import com.exception.UserException;
import com.model.User;
import com.service.UserService;

@Controller
@RequestMapping(value="/user")
public class UserController {

@Autowired
private UserService userService;

public UserController() {
}

@RequestMapping(value="users", method=RequestMethod.GET)
public String list(Model model){
Map<String, User> users = new HashMap<String, User>();
for (User user : userService.getAllUsers()) {
users.put(user.getUsername(), user);
}

model.addAttribute("users", users);
return "user/list";
}

@RequestMapping(value="add", method=RequestMethod.GET)
public String add(@ModelAttribute("user") User user){
return "user/add";
}

@RequestMapping(value="add", method=RequestMethod.POST)
public String add(@Validated User user, BindingResult br, @RequestParam(value="attach") MultipartFile[] attachs, HttpServletRequest req) throws IOException{
if (br.hasErrors()) {
return "user/add";
}

String realPath = req.getSession().getServletContext().getRealPath("/resources/upload");

for (int i = 0; i < attachs.length; i++) {
MultipartFile attach = attachs[i];
if (attach.isEmpty()) {
continue;
}

File attachFile = new File(realPath + "/" + attach.getOriginalFilename());
FileUtils.copyInputStreamToFile(attach.getInputStream(), attachFile);
System.out.println(realPath + "/" + attach.getOriginalFilename());

System.out.println(attach.getName());
System.out.println(attach.getOriginalFilename());
System.out.println(attach.getContentType());
}

userService.register(user);
return "redirect:/user/users";
}

@RequestMapping(value="/{username}/show", method=RequestMethod.GET)
public String show(@PathVariable String username, Model model){
model.addAttribute(userService.getUserByUsername(username));
return "user/show";
}

@RequestMapping(value="/{username}/show", method=RequestMethod.GET, params="json")
@ResponseBody
public User show(@PathVariable String username){
return userService.getUserByUsername(username);
}

@RequestMapping(value="/{username}/update", method=RequestMethod.GET)
public String update(@PathVariable String username, Model model){
model.addAttribute(userService.getUserByUsername(username));
return "user/update";
}

@RequestMapping(value="/{username}/update", method=RequestMethod.POST)
public String update(@PathVariable String username, @Validated User user, BindingResult br){
if(br.hasErrors()){
return "user/update";
}

userService.update(user);
return "redirect:/user/users";
}

@RequestMapping(value="/{username}/delete", method=RequestMethod.GET)
public String delete(@PathVariable String username){
userService.removeUser(username);
return "redirect:/user/users";
}

@RequestMapping(value="/login", method=RequestMethod.POST)
public String login(String username, String password, HttpSession session){
if (null == username || "".equals(username.trim())) {
throw new UserException("用户名不能为空");
}

User user = userService.getUserByUsername(username);
if (null == user) {
throw new UserException("用户名不存在");
}

if (!user.getPassword().equals(password)) {
throw new UserException("密码不正确");
}

session.setAttribute("loginUser", user);
return "redirect:/user/users";
}

@RequestMapping(value="/logout", method=RequestMethod.GET)
public String logout(HttpSession session){
session.removeAttribute("loginUser");
return "forward:/user/users";
}

@ExceptionHandler(value={UserException.class})
public String handleLocalException(UserException e, HttpServletRequest req){
req.setAttribute("error", e);
return "user/error";
}

//  @RequestMapping(value="{id}/update", method=RequestMethod.GET)
//  public String update(@PathVariable({id}) ){}

/*
@Autowired
private UserService userService;

@RequestMapping({"/user/welcomeView","/user/welcome"})
public String loginView(String username,Model model){
System.out.println(username);
model.addAttribute("username", username);
//model.addAttribute(new User());
return "welcome";
}

@RequestMapping({"/user/registerView"})
public String registerView(){
return "register";
}

@RequestMapping("/welcome")
public ModelAndView welcome(){
ModelAndView mav = new ModelAndView();
mav.addObject("welcome", "welcome you!");
mav.setViewName("welcome");
return mav;
}

@RequestMapping("/user/login")
public ModelAndView login(User user){
ModelAndView mav = new ModelAndView();
User u = userService.loginCheck(user);
if(null == u){
mav.setViewName("login");
mav.addObject("errorMsg","用户名或密码有误！");
return mav;
}
else{
mav.setViewName("success");
mav.addObject("user", u);
return mav;
}
}

@RequestMapping("/user/register")
public ModelAndView register(User user){
ModelAndView mav = new ModelAndView();
if(userService.register(user)){
mav.setViewName("register_succ");
return mav;
}
else{
mav.setViewName("register");
mav.addObject("errorMsg","用户名已被占用，请更换！！");
return mav;
}
}*/
}


WelcomeController.java

package com.controller;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;

@Controller
public class WelcomeController {
public WelcomeController() {
}

@RequestMapping(value="login", method=RequestMethod.GET)
public String welcome(){
return "welcome";
}
}


2.dao

UserDao.java

package com.dao;

import java.util.List;

import com.model.User;

public interface UserDao {
public void register(User user);
public User findUserByUserName(final String userName);
public List<User> findAllUser();
public boolean deleteByUsername(String username);
public boolean update(User user);
}


UserDaoImpl.java

package com.dao.implement;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.List;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.jdbc.core.JdbcTemplate;
import org.springframework.jdbc.core.RowMapper;
import org.springframework.stereotype.Repository;

import com.dao.UserDao;
import com.model.User;

@Repository("userDao")
public class UserDaoImpl implements UserDao {

@Autowired
private JdbcTemplate jdbcTemplate;

public UserDaoImpl(){
}

public void register(User user) {
String sqlStr = "insert into user(userName,password) values(?,?)";
Object[] params = new Object[]{user.getUsername(),user.getPassword()};
jdbcTemplate.update(sqlStr, params);
}

public User findUserByUserName(String userName) {
String sqlStr = "select * from user where userName = ?" ;
List<User> users = jdbcTemplate.query(sqlStr,new Object[]{userName} , new UserRowMapper());

/* jdbcTemplate.query(sqlStr, new Object[]{userName}, new RowCallbackHandler() {
public void processRow(ResultSet rs) throws SQLException {
user.setId(rs.getInt("id"));
user.setUsername(rs.getString("userName"));
user.setPassword(rs.getString("password"));
}
});*/
if (null != users && !users.isEmpty()) {
return users.get(0);
}
return null;
}

@Override
public boolean deleteByUsername(String username){
int updateNum = jdbcTemplate.update("delete from user where username = '" + username + "'");

if (updateNum != 1) {
return false;
}

return true;
}

@Override
public List<User> findAllUser() {
return jdbcTemplate.query("select * from user", new UserRowMapper());
}

private static class UserRowMapper implements RowMapper <User> {

public User mapRow(ResultSet rs, int rowNum) throws SQLException {
int i = 1;
User user = new User();
user.setId(rs.getInt(i++));
user.setUsername(rs.getString(i++));
user.setPassword(rs.getString(i++));
return user;
}

}

@Override
public boolean update(User user) {
return jdbcTemplate.update("update user set password = " + user.getPassword() + " where username = '" + user.getUsername() + "'") == 1 ? true : false;
}

}


3.exception

UserException.java

package com.exception;

public class UserException extends RuntimeException {

public UserException(String string) {
super(string);
}

}


4.model

User.java

package com.model;

import java.io.Serializable;

import javax.validation.constraints.Max;
import javax.validation.constraints.Min;
import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

import org.hibernate.validator.constraints.NotEmpty;

@SuppressWarnings("serial")
public class User implements Serializable {
private Integer id;
private String username;
private String password;

public User(){}

public User(Integer id, String username, String password) {
super();
this.id = id;
this.username = username;
this.password = password;
}

@NotEmpty(message="username shouln't null!")
@Size(min=3,max=10,message="username must between 3 and 10!")
public String getUsername() {
return username;
}

public void setUsername(String username) {
this.username = username;
}

@NotEmpty(message="username shouldn't null!")
@Size(min=3,max=10,message="password must between 3 and 10!")
public String getPassword() {
return password;
}
public void setPassword(String password) {
this.password = password;
}

@NotNull(message="id shouldn't empty!")
@Min(value=3,message="username must > 3")
@Max(value=100000,message="username must < 10")
public Integer getId() {
return id;
}

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

}


5.service

UserService.java

package com.service;

import java.util.List;

import com.model.User;

public interface UserService {
public boolean register(User user);
public User loginCheck(User user);
public List<User> getAllUsers();
public boolean removeUser(String username);
public User getUserByUsername(String username);
public boolean update(User user);
}


UserServiceImpl.java

package com.service.implement;

import java.util.List;

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

import com.dao.UserDao;
import com.model.User;
import com.service.UserService;

@Service("userService")
public class UserServiceImpl implements UserService {

@Autowired
private UserDao userDao;

public UserServiceImpl() {
}

@Override
public List<User> getAllUsers() {
return userDao.findAllUser();
}

@Override
public boolean register(User user) {
User u =  userDao.findUserByUserName(user.getUsername());

if(u == null || u.getId() == null || u.getId() == 0){
userDao.register(user);
return true;
}else{
System.out.println("id="+u.getId()+",  userName="+u.getUsername()+", password="+u.getPassword());
return false;
}
}

@Override
public User loginCheck(User user) {
User u  = userDao.findUserByUserName(user.getUsername());
System.out.println("id="+u.getId()+",  userName="+u.getUsername()+", password="+u.getPassword());
if(user.getPassword().equals(u.getPassword())){
return u;
}
else{
return null;
}
}

@Override
public boolean removeUser(String username){
if (userDao.deleteByUsername(username)) {
return true;
}

return false;
}

@Override
public User getUserByUsername(String username) {
return userDao.findUserByUserName(username);
}

@Override
public boolean update(User user) {
return userDao.update(user);
}

}


6.views

add.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="sf" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
add
</title>
</head>
<body>
<sf:form method="post" modelAttribute="user" enctype="multipart/form-data">
id<sf:input path="id" /><sf:errors path="id"></sf:errors><br>
username<sf:input path="username"/><sf:errors path="username"></sf:errors><br>
password<sf:input path="password"/><sf:errors path="password"></sf:errors><br>
upload<input type="file" name="attach"><br>
<input type="file" name="attach"><br>
<input type="file" name="attach"><br>
<input type="file" name="attach"><br>
<input type="submit" value="添加用户">
</sf:form>

</body>
</html>


error.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="sf" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
error page (local)
</title>
</head>
<body>
<h1>${error.message}</h1>
</body>
</html>


list.jsp

<%@page import="com.model.User"%>
<%@page import="org.eclipse.jdt.internal.compiler.batch.Main"%>
<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%
User user = (User)session.getAttribute("loginUser");
boolean isLogin = null == user ? false : true;
%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
list
</title>
<link rel="stylesheet" href="<%=request.getContextPath()%>/resources/styles/main.css" type="text/css">
</head>
<body>
<a href="add" >add</a>
<h1>————————>${loginUser.username} ---
<c:if test="<%=isLogin %>">
<a href="logout">logout</a>
</c:if>
</h1>
<br>
<c:forEach items="${users}" var="uentry">
=============${uentry.value.id}
=============<a href="${uentry.value.username}/show"> ${uentry.value.username}</a>
=============${uentry.value.password}
<a href="${uentry.value.username}/update">update</a>
<a href="${uentry.value.username}/delete">delete</a><br>
</c:forEach>

</body>
</html>


list.jsp

<%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="sf" %>
<%
String path = request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/";
%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<base href="<%=basePath%>">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
show
</title>
</head>
<body>
id: ${user.id}<br>
username: ${user.username}<br>
password: ${user.password}<br>
<a href="user/users">return main page</a>
</body>
</html>


update.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"
pageEncoding="utf-8"%>
<%@taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core"%>
<%@taglib uri="http://www.springframework.org/tags/form" prefix="sf" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>
update
</title>
</head>
<body>
<sf:form method="post" modelAttribute="user">
id<sf:input path="id" /><sf:errors path="id"></sf:errors><br>
username<sf:input path="username"/><sf:errors path="username"></sf:errors><br>
password<sf:input path="password"/><sf:errors path="password"></sf:errors><br>
<input type="submit" value="修改用户">
</sf:form>

</body>
</html>


welcome.jsp

<%@ page language="java" contentType="text/html; utf-8" pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>sprint hello</title>
</head>

<body>
hello please login!<br>

<form action="user/login" method="post">
username:<input name="username" type="text"><br>
password:<input name="password" type="text"><br>
<input type="submit" value="login">
</form>

</body>

</html>


user.sql

CREATE TABLE `user` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`userName` varchar(30) DEFAULT NULL,
`password` varchar(30) DEFAULT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=7 DEFAULT CHARSET=utf8;


四、测试结果









over!
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