eclipse + maven搭建SSM框架

在博客园上看到的,感觉写的还不错,就转载一下。

地址:http://www.cnblogs.com/iflytek/p/7096481.html

0、系统环境

1)Windows 10 企业版
2)JDK 1.8.0_131
3)Eclipse Java EE IDE for Web Developers Version: Neon.3 Release (4.6.3)
4)Tomcat 8.5

1、maven下载及配置

maven的下载地址:http://maven.apache.org/download.cgi

在环境变量中,新增系统变量名:MAVEN_HOME,变量值:D:\Java\maven

在Path中追加:%MAVEN_HOME%\bin;

在命令行窗口中输入:mvn –v,如果看见下图则说明maven安装配置完毕

2、maven仓库的设置

maven仓库默认位置在系统用户目录下的.m2目录中,类似下图

因为总所周知的原因,直接访问maven公共仓库的速度比较慢,所以推荐使用阿里的maven仓库镜像。编辑setting.xml文件,在mirrors节点下,新增如下内容,这样从仓库中下载jar包速度上会快很多。

<mirror>
 <id>nexus-aliyun</id>
 <mirrorOf>*</mirrorOf>
 <name>Nexus aliyun</name>
 <url>http://maven.aliyun.com/nexus/content/groups/public</url>
</mirror>

3、eclipse整合maven

设置eclipse自带maven整合工具,在Preferences中找到Maven节点,观察User Settings项的设置是否正确

点击Installations节点,添加maven runtime

4、创建maven项目时设置JDK

问题描述:eclipse创建maven项目时,显示的JDK默认版本为1.5,实际使用的JDK为1.8,如何修改?

解决方案:找到本机maven仓库存放位置,比如:${user.home}/.m2/路径,编辑settings.xml文件,在profiles节点下配置

<profile>
<id>jdk-1.8</id>
<activation>
<activeByDefault>true</activeByDefault>
<jdk>1.8</jdk>
</activation>
<properties>
<maven.compiler.source>1.8</maven.compiler.source>
<maven.compiler.target>1.8</maven.compiler.target>
<maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
</properties>
</profile>

5、使用maven创建SSM项目

1)选择Maven Project

 

2)点击Next,选择默认工作空间位置

3)选择web类型

4)填写GroupID、ArtifactID

Group ID:相当于一个组织

Artifact ID:相当于这个组织下的一个具体项目

Packege:根据Group ID和Artifact ID生成一个默认的名称

5)创建出的maven项目如下图

6)问题描述:提示错误:

在eclipse中设置Server为Tomcat,注意JRE设置为安装的JDK的jre

在工程上右键,查看工程属性,找到Java Build Path,添加Server Runtime为Tomcat

点击Finish后,项目工程变为下图

7)在项目上右键,查看项目信息

默认的Dynamic Web Module为2.3,使用Tomcat 8.5,需要修改为3.1

修改方法:

① maven工程所在目录下org.eclipse.wst.common.project.facet.core.xml

编辑内容,如下所示

<?xml version="1.0" encoding="UTF-8"?>

<faceted-project>

<fixed facet="wst.jsdt.web"/>

<installed facet="java" version="1.8"/>

<installed facet="jst.web" version="2.3"/>

<installed facet="wst.jsdt.web" version="1.0"/>

</faceted-project>

改为

<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
<fixed facet="wst.jsdt.web"/>
<installed facet="java" version="1.8"/>
<installed facet="jst.web" version="3.1"/>
<installed facet="wst.jsdt.web" version="1.0"/>
</faceted-project>

② maven工程下的web.xml文件修改为

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
 version="3.1" metadata-complete="true">
</web-app>

③ pom.xml文件中修改build节点,添加如下内容

<plugins>
 <plugin>
 <groupId>org.apache.maven.plugins</groupId>
 <artifactId>maven-compiler-plugin</artifactId>
 <configuration>
 <source>1.8</source>
 <target>1.8</target>
 </configuration>
 </plugin>
</plugins>

④ 修改后,在项目上右键,找到Maven属性下的Update Project,点击之

⑤ 选择该项目进行更新,如果怕不能强制更新,可以勾选Force Update of Snapshots/Releases

点击OK后更新maven项目,再观察项目属性,Module已经变为3.1

6、下载ssm框架所需jar包
修改pom.xml内容为:

<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>cn.temptation</groupId>
 <artifactId>ssm</artifactId>
 <packaging>war</packaging>
 <version>0.0.1-SNAPSHOT</version>
 <name>ssm Maven Webapp</name>
 <url>http://maven.apache.org</url>
 <properties>
 <!-- Spring版本号 -->
 <spring.version>4.3.8.RELEASE</spring.version>
 </properties>
 <dependencies>
 <!-- Spring相关包 -->
 <dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-core</artifactId>
 <version>${spring.version}</version>
 </dependency>
 <dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-aop</artifactId>
 <version>${spring.version}</version>
 </dependency>
 <dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-web</artifactId>
 <version>${spring.version}</version>
 </dependency>
 <dependency>
 <groupId>org.springframework</groupId>
 <artifactId>spring-webmvc</artifactId>
 <version>${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>

<!-- AOP相关包 -->
 <dependency>
 <groupId>org.aspectj</groupId>
 <artifactId>aspectjrt</artifactId>
 <version>1.8.0</version>
 </dependency>
 <dependency>
 <groupId>org.aspectj</groupId>
 <artifactId>aspectjweaver</artifactId>
 <version>1.8.0</version>
 </dependency>

<!-- MyBatis相关包 -->
 <dependency>
 <groupId>org.mybatis</groupId>
 <artifactId>mybatis</artifactId>
 <version>3.3.0</version>
 </dependency>
 <!-- MySQL相关包 -->
 <dependency>
 <groupId>mysql</groupId>
 <artifactId>mysql-connector-java</artifactId>
 <version>5.1.26</version>
 </dependency>
 <!-- 数据库连接池 -->
 <dependency>
 <groupId>com.alibaba</groupId>
 <artifactId>druid</artifactId>
 <version>1.0.20</version>
 </dependency>

<!-- Spring集成MyBatis -->
 <dependency>
 <groupId>org.mybatis</groupId>
 <artifactId>mybatis-spring</artifactId>
 <version>1.2.3</version>
 </dependency>

<!-- JSP标准标签库 -->
 <dependency>
 <groupId>javax.servlet</groupId>
 <artifactId>jstl</artifactId>
 <version>1.2</version>
 </dependency>

<!-- 日志相关包 -->
 <dependency>
 <groupId>log4j</groupId>
 <artifactId>log4j</artifactId>
 <version>1.2.17</version>
 </dependency>
 <dependency>
 <groupId>org.slf4j</groupId>
 <artifactId>slf4j-api</artifactId>
 <version>1.7.21</version>
 </dependency>

<!-- 单元测试相关包 -->
 <dependency>
 <groupId>junit</groupId>
 <artifactId>junit</artifactId>
 <version>3.8.1</version>
 <scope>test</scope>
 </dependency>
 </dependencies>
 <build>
 <finalName>ssm</finalName>
 <plugins>
 <plugin>
 <groupId>org.apache.maven.plugins</groupId>
 <artifactId>maven-compiler-plugin</artifactId>
 <configuration>
 <source>1.8</source>
 <target>1.8</target>
 </configuration>
 </plugin>
 </plugins>
 </build>
</project>

保存后,可以看到相关jar包被下载至本地仓库

7、完善项目结构
因为服务端maven项目的标准结构有四个子包:src/main/java、src/main/resources、src/test/java、src/test/resources,这里缺少了src/test/resources,所以手动补上。

在项目中新建Source Folder

创建src/test/resources目录后,工程如下图所示

右键查看项目属性,点击Deployment Assembly,移除test和target

移除后如下图

8、创建项目用的配置文件

创建log4j.properties文件,内容如下:

 

#USE THIS SETTING FOR OUTPUT MYBATIS`s SQL ON THE CONSOLE
log4j.rootLogger=DEBUG, Console

#Console
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=%d [%t] %-5p [%c] - %m%n

log4j.logger.java.sql.ResultSet=INFO
log4j.logger.org.apache=INFO
log4j.logger.java.sql.Connection=DEBUG
log4j.logger.java.sql.Statement=DEBUG
log4j.logger.java.sql.PreparedStatement=DEBUG

创建mybatis-config.xml文件,内容如下:

 

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE configuration
 PUBLIC "-//mybatis.org//DTD Config 3.0//EN"
 "http://mybatis.org/dtd/mybatis-3-config.dtd">
<configuration>
 <!-- 设置别名 -->
 <typeAliases>
 <package name="cn.temptation.domain" />
 </typeAliases>
</configuration>
创建spring-mvc.xml文件,内容如下:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:context="http://www.springframework.org/schema/context"
 xmlns:mvc="http://www.springframework.org/schema/mvc"
 xsi:schemaLocation="
 http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
 http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc.xsd">

<!-- 启动自动扫描 -->
 <context:component-scan base-package="cn.temptation.*" />

<!-- 注册MVC注解驱动 -->
 <mvc:annotation-driven />

<!-- 静态资源可访问的设置方式 -->
 <mvc:default-servlet-handler />

<!-- 配置视图解析器,可以显式设置,也可以不设置,不设置会依据SpringMVC的默认设置 -->
 <bean id="viewResolver"
 class="org.springframework.web.servlet.view.InternalResourceViewResolver">
 <property name="prefix" value="/" />
 <property name="suffix" value=".jsp" />
 </bean>
</beans>

创建spring-mybatis.xml文件,内容如下:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xsi:schemaLocation="
 http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd">

<!-- 定义数据源Bean -->
 <!-- Druid -->
 <bean id="dataSource" class="com.alibaba.druid.pool.DruidDataSource">
 <property name="url" value="jdbc:mysql://localhost:3306/test" />
 <property name="username" value="root" />
 <property name="password" value="sa" />
 </bean>

<!-- 注册SqlSessionFactoryBean -->
 <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
 <property name="dataSource" ref="dataSource" />
 <!-- 自动扫描mappers.xml文件 -->
 <property name="mapperLocations" value="classpath:cn/temptation/dao/*.xml" />
 <property name="configLocation" value="classpath:mybatis-config.xml"></property>
 </bean>
 
 <!-- DAO接口所在包名,Spring会自动查找其下的类 -->
 <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
 <property name="basePackage" value="cn.temptation.dao" />
 <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
 </bean>
</beans>

创建spring-tx.xml文件,内容如下:

<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
 xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
 xmlns:context="http://www.springframework.org/schema/context"
 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.xsd
 http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context.xsd
 http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop.xsd
 http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx.xsd">

<!-- 开启AOP注解扫描 -->
 <aop:aspectj-autoproxy proxy-target-class="true" />

<!-- 事务管理器,依赖于数据源 -->
 <bean id="txManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
 <property name="dataSource" ref="dataSource" />
 </bean>
 
 <!-- 编写通知:对事务进行增强(通知),需要编写对切入点和具体执行事务细节 -->
 <tx:advice id="txAdvice" transaction-manager="txManager">
 <tx:attributes>
 <!--
 为切入点方法添加事务详情
 name:方法名,*表示任意方法名称
 propagation:设置传播行为
 isolation:设置隔离级别
 read-only:是否只读
 -->
 <tx:method name="add*" propagation="REQUIRED" isolation="DEFAULT" read-only="false" rollback-for="Exception" />
 <tx:method name="delete*" propagation="REQUIRED" isolation="DEFAULT" read-only="false" rollback-for="Exception" />
 <tx:method name="update*" propagation="REQUIRED" isolation="DEFAULT" read-only="false" rollback-for="Exception" />
 </tx:attributes>
 </tx:advice>
 
 <!-- 设置AOP,让Spring自动对目标生成代理,需要使用AspectJ表达式 -->
 <aop:config proxy-target-class="true">
 <!-- 切面:整合切入点和通知 -->
 <aop:advisor advice-ref="txAdvice" pointcut="within(cn.temptation.web..*)" />
 </aop:config>
</beans>

9、编写服务端代码

编写User实体类,代码如下:

package cn.temptation.domain;

/**
 * 用户信息
 */
public class User {
 // 成员变量
 private Integer userid;
 private String username;
 private String password;

// 构造函数
 public User() {
 super();
 }

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

// 成员方法
 public Integer getUserid() {
 return userid;
 }

public void setUserid(Integer 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;
 }
}

编写UserController控制器,代码如下:

package cn.temptation.web;

import javax.annotation.Resource;
import javax.servlet.http.HttpSession;

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

import cn.temptation.dao.UserDao;
import cn.temptation.domain.User;

/**
 * 用户控制器
 */
@Controller
@RequestMapping(value = "/user")
public class UserController {
 @Resource
 private UserDao userDao;

@RequestMapping("/view")
 public String view() {
 return "main/login";
 }

@RequestMapping("/indexview")
 public String index() {
 return "main/index";
 }

@RequestMapping(value = "/login", method = RequestMethod.POST)
 public ModelAndView login(User model, HttpSession session) {
 User user = userDao.findByUsername(model.getUsername());

if (user == null || !user.getPassword().equals(model.getPassword())) {
 return new ModelAndView("redirect:/login.jsp");
 } else {
 session.setAttribute("user", user);
 ModelAndView mav = new ModelAndView();
 mav.setViewName("index");
 return mav;
 }
 }
}

编写UserDao数据访问层接口,代码如下:

package cn.temptation.dao;

import cn.temptation.domain.User;

public interface UserDao {
 public abstract User findByUsername(String username);
}

编写UserMapper.xml数据访问层映射文件,代码如下:

<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN"
 "http://mybatis.org/dtd/mybatis-3-mapper.dtd">
<mapper namespace="cn.temptation.dao.UserDao">
 <select id="findByUsername" parameterType="string" resultType="User">
 SELECT * FROM userinfo WHERE username=#{username}
 </select>
</mapper>

10、编写客户端代码

编写login.jsp登录页,代码如下:

<%@ page language="java" contentType="text/html; charset=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>登录</title>
</head>
<body>
<form action="user/login" method="post">
<label>账号:</label>
<input type="text" id="txtUsername" name="username" placeholder="请输入账号" /><br/>
<label>密码:</label>
<input type="password" id="txtPassword" name="password" placeholder="请输入密码" /><br/>
<input type="submit" value="提交" />
<input type="reset" value="重置" />
</form>
</body>
</html>

编写index.jsp主页,代码如下:

<%@ page language="java" contentType="text/html; charset=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>主页</title>
</head>
<body>
<h3>欢迎,${user.username }</h3>
</body>
</html>

11、使用maven构建项目

在项目上右键,找到Maven属性的Update Project,也可以Alt+F5操作

修改项目编译路径为JRE系统类库,否则后续操作出错

项目上右键,找到Run As属性,找到Maven install

点击执行,结果如下说明构建成功

项目运行还是使用web工程的部署运行方式

运行项目,观察是否报错

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