使用IntelliJ IDEA和Maven管理搭建Web开发环境（以Spring MVC为例）（二）
前言：在使用IntelliJ IDEA和Maven管理搭建Web开发环境（以Spring MVC为例）（一）中已经介绍了如何对web基础环境进行搭建，这里主要演示，如何对spring环境进行搭建，然后组合成一个完整的spring MVC Web项目。
Spring环境的搭建
1.通过Maven可以轻松的配置，spring环境，具体pom文件如下所示
<!--设置版本信息--> <properties> <file.encoding>UTF-8</file.encoding> <spring.version>4.2.1.RELEASE</spring.version> <mysql.version>5.1.20</mysql.version> <servlet.version>2.5</servlet.version> <commons-dbcp.version>1.4</commons-dbcp.version> <commons-pool.version>1.4</commons-pool.version> <aspectj.version>1.8.1</aspectj.version> </properties> <!--定义依赖--> <dependencies> <!--spring相关依赖--> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.aspectj</groupId> <artifactId>aspectjweaver</artifactId> <version>${aspectj.version}</version> </dependency> <!-- 数据库驱动依赖--> <dependency> <groupId>mysql</groupId> <artifactId>mysql-connector-java</artifactId> <version>${mysql.version}</version> </dependency> <!-- 连接池依赖--> <dependency> <groupId>commons-dbcp</groupId> <artifactId>commons-dbcp</artifactId> <version>${commons-dbcp.version}</version> </dependency> <dependency> <groupId>commons-pool</groupId> <artifactId>commons-pool</artifactId> <version>${commons-pool.version}</version> </dependency> <!-- web类库依赖--> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>${servlet.version}</version> <scope>provided</scope> </dependency> <dependency> <groupId>javax.servlet</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 日志依赖--> <dependency> <groupId>log4j</groupId> <artifactId>log4j</artifactId> <version>1.2.17</version> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-surefire-plugin</artifactId> <version>2.17</version> <configuration> <parallel>methods</parallel> <threadCount>10</threadCount> </configuration> </plugin> </plugins> </build>
注：pom文件中除了spring所需jar包，还对数据库驱动等相关信息，进行了依赖配置。
2.在Resource目录下创建spring配置文件，如下图所示
3.由于需演示一个相对完整的Spring MVC Web项目，因此建立如下所示的目录结构
注：这里主要演示一个登录界面，当登录成功后，进入主界面（为了简单这里就不演示日志操作了）。因此接下来需要创建一个数据库。
4.创建数据库
DROP DATABASE IF EXISTS springtestdb; CREATE DATABASE springtestdb DEFAULT CHARACTER SET utf8; USE springtestdb; ##建表 CREATE TABLE `t_user` ( `user_id` int(11) NOT NULL auto_increment, `user_name` varchar(30) default NULL, `password` varchar(32) default NULL, PRIMARY KEY (`user_id`) ) ENGINE=InnoDB AUTO_INCREMENT=2 DEFAULT CHARSET=utf8 ##插入初始化数据 INSERT INTO t_user (user_name,password) VALUES('admin','123456'); COMMIT;
5.编写相应代码
User：
public class User implements Serializable { private int userid; private String username; private String password; public int getUserid() { return userid; } public void setUserid(int userid) { this.userid = userid; } 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; } @Override public String toString() { return "User[" + "userid=" + userid + ", username='" + username + '\'' + ", password='" + password + '\'' + ']'; } }
UserDao：
@Repository("userDao")
public class UserDao
{
private static Logger logger = Logger.getLogger(UserDao.class);
//如果直接使用注解进行属性的修饰，可以不用set函数
@Resource(name = "jdbcTemplate")
private JdbcTemplate jdbcTemplate;
/**
* 获取匹配用户的个数
* @param username
* @param password
* @return
*/
public int getMatchCount(String username, String password)
{
String querysql = "select count(*) from t_user where user_name=? and password=?";
int rows = jdbcTemplate.queryForObject(querysql, Integer.class, username, password);
logger.info("rows=" + rows);
return rows;
}
}
UserService：
@Transactional @Service("userService") public class UserService { //直接通过在属性上进行配置注入，就可以不用写set方法了 @Resource(name = "userDao") private UserDao userDao; @Resource(name="loginlogDao") private LoginLogDao loginLogDao; /** * 判断用户名与密码是否正确 * @param useranme * @param password * @return */ public boolean hasMatchUser(String useranme,String password) { int matchcount=userDao.getMatchCount(useranme,password); return matchcount>0; } }
LoginController:
@Controller("loginController")
public class LoginController
{
private static Logger logger=Logger.getLogger(LoginController.class);
@Resource(name = "userService")
private UserService userService;
@RequestMapping(value = "/index.html") //默认会 访问index.html页面
public String loginPage()
{
return "login";
}
@RequestMapping(value = "/loginCheck.html")
public ModelAndView loginCheck(HttpServletRequest request, LoginCommand loginCommand)
{
String username=loginCommand.getUsername();
String password=loginCommand.getPassword();
boolean isvaliduser = userService.hasMatchUser(username, password);
if (!isvaliduser)
{
return new ModelAndView("login", "error", "用户名或密码错误");
}
else
{
logger.info("username="+username+" password="+password);
request.getSession().setAttribute("user", user);
return new ModelAndView("main");
}
}
}
LoginCommand:
public class LoginCommand { private String username; private String password; 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; } }
login.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%> <html> <head> <title>测试</title> </head> <body> <c:if test="${!empty error}"> <font color="red"><c:out value="${error}" /></font> </c:if> <form action="<c:url value="/loginCheck.html"/>" method="post"> 用户名： <input type="text" name="username"> <br> 密 码： <input type="password" name="password"> <br> <input type="submit" value="登录" /> <input type="reset" value="重置" /> </form> </body> </html>
main.jsp:
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <title>测试</title> </head> <body> ${user.username},欢迎您! </body> </html>
6.进行相应配置
spring配置：
<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xmlns: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-4.0.xsd http://www.springframework.org/schema/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-4.0.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-4.0.xsd"> <!-- 开启注解--> <context:component-scan base-package="com.springlearning"/> <!-- 配置数据源--> <bean id="dataSource" class="org.apache.commons.dbcp.BasicDataSource" destroy-method="close" p:driverClassName="com.mysql.jdbc.Driver" p:url="jdbc:mysql://localhost:3307/springtestdb" p:username="root" p:password=""/> <!-- 配置jdbcTemplate--> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate" p:dataSource-ref="dataSource"/> <!-- 配置jdbc事务管理器--> <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager"> <!-- 注入数据源 --> <property name="dataSource" ref="dataSource"/> </bean> <aop:config proxy-target-class="true"> <aop:pointcut id="serviceMethod" expression="(execution(* com.springlearning.service..*(..)))" /> <aop:advisor pointcut-ref="serviceMethod" advice-ref="txAdvice" /> </aop:config> <tx:advice id="txAdvice" transaction-manager="txManager"> <tx:attributes> <tx:method name="*" /> </tx:attributes> </tx:advice> </beans>
web.xml配置：
<?xml version="1.0" encoding="UTF-8"?> <web-app 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" version="2.5" id="webapp_id"> <!--配置监听器 --> <!--以便在服务器启动的时候，加载spring配置文件--> <listener> <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class> </listener> <!--配置spring配置文件--> <context-param> <param-name>contextConfigLocation</param-name> <param-value>classpath:spring/springconfig.xml</param-value> </context-param> <servlet> <servlet-name>learning</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>3</load-on-startup> </servlet> <servlet-mapping> <servlet-name>learning</servlet-name> <url-pattern>*.html</url-pattern> </servlet-mapping> <welcome-file-list> <welcome-file>index.html</welcome-file> <!--这里配置的默认页面和LoginController中对应名称需要一致--> </welcome-file-list> </web-app>
learning-servlet.xml配置：
<?xml version="1.0" encoding="UTF-8" ?> <beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:p="http://www.springframework.org/schema/p" xmlns:context="http://www.springframework.org/schema/context" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-4.0.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-4.0.xsd"> <!-- 开启web包的spring注解--> <context:component-scan base-package="com.springlearning.web"/> <!-- 配置视图解析器，将ModelAndView及字符串解析为具体的页面 --> <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver" p:viewClass="org.springframework.web.servlet.view.JstlView" p:prefix="/WEB-INF/jsp/" p:suffix=".jsp"/> </beans>
至此，编写和配置完所有文件，下面进行发布（不要忘记Put into Output Root，具体步骤请参看看上一篇文章）。当正确输入用户名和密码后，效果如下：
至此通过IDEA与Maven搭建Spring MVC Web项目成功。
by Shawn Chen，2018.1.11日，下午。
