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(特详细)使用eclipse+maven搭建ssm框架_eclipse maven ssm

作者：2023面试高手 | 2024-02-23 10:49:21

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eclipse maven ssm

使用eclipse+maven搭建ssm框架 - 简书事先准备好系统环境 Window 10 JDK1.8 Eclipse Java EE IDE for Web Developers（Version: Neon Release...https://www.jianshu.com/p/f3c582edca2b

事先准备好系统环境

Window 10
JDK1.8
Eclipse Java EE IDE for Web Developers（Version: Neon Release (4.6.0)）
Tomcat8.5
Maven3.6
关于环境配置请参考我的其他文章
JavaEE开发环境搭建（基于Eclipse）JavaEE开发环境搭建（基于Eclipse） - 简书
如何使用Eclipse创建Maven工程如何使用Eclipse创建Maven工程 - 简书

使用maven创建SSM框架

选择Maven Project
选择默认工作空间位置
选择web类型
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
创建出的maven项目如下图

提示错误：

解决办法：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，项目工程变成下图
在项目上点击右键，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工程所在目录有个.settings文件夹（默认隐藏）下面有个文件org.eclipse.wst.common.project.facet.core.xml

将内容改为：


<?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="3.0"/>
  <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
⑥ 点击OK后更新maven项目，再观察项目属性，Module已经变为3.1

下载ssm框架所需的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>com.huyonghua</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>
        <!-- 添加Servlet支持 -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope>
        </dependency>
        
        <dependency>
            <groupId>javax.servlet.jsp</groupId>
            <artifactId>javax.servlet.jsp-api</artifactId>
            <version>2.3.1</version>
            <scope>provided</scope>
        </dependency>
 
        <!-- JSP标准标签库 -->
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
 
        <!-- 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>
 
        <!-- 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

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/resoures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

Web Deployment Assembly是eclipse中的发布路径设置，DeployPath表示每个资源发布之后的文件路径。eclipse中使用tomcat使用启动web项目的流程是 java build path编译项目源代码生成的class文件放到buildpath的设置路径中，根据web deployment assembly将项目中的各个资源发布到设置的指定文件中

框架测试

创建项目中用的配置文件

log4j.properties


#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

srping-core.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: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(com.huyonghua.web..*)" />
    </aop:config>
 
        <!-- 导入其他配置文件 -->
    <import resource="spring-mybatis.xml" />
    
        <!-- 扫描service -->
    <context:component-scan base-package="com.huyonghua.service"></context:component-scan>
</beans>

spring-mvc.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: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="com.huyonghua.web" />
 
    <!-- 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>

spring-mybatis.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"
    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="123456" />
    </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:com/huyonghua/dao/*.xml"></property>   
             
        <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="com.huyonghua.dao" />
        <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />
    </bean>
</beans>

mybatis-config.xml


<?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>
    <!-- 设置实体别名 -->
    <typeAliases>
        <package name="com.huyonghua.domain" />
    </typeAliases>
 
</configuration>

配置web.xml启用spring容器


<?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">
  <welcome-file-list>
    <welcome-file>index.jsp</welcome-file>
  </welcome-file-list>
  
    <!-- Spring配置文件 -->
    <context-param>
        <param-name>contextConfigLocation</param-name>
        <param-value>classpath:spring-core.xml</param-value>
    </context-param>
    <!-- 编码过滤器 -->
    <filter>
        <filter-name>encodingFilter</filter-name>
        <filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
        <async-supported>true</async-supported>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encodingFilter</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>
    <!-- Spring监听器 -->
    <listener>
        <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
    </listener>
    
    <!-- 添加对springmvc的支持 -->
    <servlet>
        <servlet-name>springMVC</servlet-name>
        <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
        <init-param>
            <param-name>contextConfigLocation</param-name>
            <param-value>classpath:spring-mvc.xml</param-value>
        </init-param>
        <load-on-startup>1</load-on-startup>
        <async-supported>true</async-supported>
    </servlet>
    <servlet-mapping>
        <servlet-name>springMVC</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
</web-app>

数据库插入测试数据
创建一个test数据库，并建一个userinfo的表，表结构如下

插入测试数据
编写服务端代码

User.java


package com.huyonghua.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;
    }
}

UserDao.java


package com.huyonghua.dao;
 
import com.huyonghua.domain.User;
 
public interface UserDao {
    public User findByUsername(String username);
}

UserMapper.xml


<?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="com.huyonghua.dao.UserDao">
    <select id="findByUsername" parameterType="string" resultType="User">
        SELECT * FROM userinfo WHERE username=#{username}
    </select>
</mapper>

UserService.java


package com.huyonghua.service;
 
import com.huyonghua.domain.User;
 
public interface UserService {
    public User findUserByName(String name);
}

UserServiceImpl.java


package com.huyonghua.service.impl;
 
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
 
import com.huyonghua.dao.UserDao;
import com.huyonghua.domain.User;
import com.huyonghua.service.UserService;
 
@Service
@Transactional
public class UserServiceImpl implements UserService{
 
    @Autowired
    private UserDao userDao;
    @Override
    public User findUserByName(String name) {
        // TODO Auto-generated method stub
        return this.userDao.findByUsername(name);
    }
}

UserController.java


package com.huyonghua.web;
 
 
import javax.servlet.http.HttpSession;
 
import org.springframework.beans.factory.annotation.Autowired;
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 com.huyonghua.domain.User;
import com.huyonghua.service.UserService;
 
/**
 * 用户控制器
 */
@Controller
@RequestMapping(value = "/user")
public class UserController {
    @Autowired
    private UserService userService;
 
    @RequestMapping(value = "/login", method = RequestMethod.POST)
    public ModelAndView login(User model, HttpSession session) {
        User user = userService.findUserByName(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;
        }
    }
}

编写客户端代码

login.jsp


<%@ 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="${pageContext.request.contextPath }/user/login.do" 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>

index.jsp


<%@ 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>

发布项目到tomcat
右键项目-->run as-->run on server

本文源码已发布到我的github仓库，欢迎大家Fork and Star!

git@github.com:goldfather008/ssm.git

问题

tomcat运行报错。The Tomcat server configuration at \Servers\Tomcat v7.0 Server at localhost-config is missing. Check the server for errors.
原因：可能不小心删除了Project Explorer下的Server
解决办法：Window-Preferences-Server-Server Runtime Environments重新关联就可以了

查询数据库时发现报错Invalid bound statement (not found)
原因：mybaits的配置文件与接口调用没有对应，一般情况是Mapepr.xml文件中nameapce没有和mapper接口发生映射，导致mybatis绑定失败，检查是否正确配置映射

tomcat在eclipse里面能正常启动，而在浏览器中访问http://localhost:8080/不能访问，且报404错误。同时其他项目页面也不能访问。
关闭eclipse里面的tomcat，在tomcat安装目录下双击startup.bat手动启动tomcat服务器。访问http://localhost:8080/能正常访问tomcat管理页面。
原因：eclipse将tomcat的项目发布目录（tomcat 目录中的webapp）重定向了,所以你会发现在tomcat安装目录下的webapp目录里面找不到你的项目文件。
解决办法：重新配置下tomcat服务器：
在eclipse中的server页面，双击tomcat服务，会看到如图所示的配置页面：

可以看到红圈中选择的是 Use workspace metadata(does not modify Tomcat installion)
如果该tomcat中部署了项目的话，这红圈中的选项会灰掉不能修改，要修改必须得先把tomcat中的部署的服务都移除。

通过右键单击tomcat服务器选择 Add and Remove，在弹出的对话框中移除已部署的项目。移除完确定后，将看到上面的选项面板部分可编辑了。
选择Use tomcat installation(Task control of Tomcat installation) 即选择tomcat的安装目录来作为项目的发布目录。
然后,下来四行,看到"Deploy Path"了没?它后面的值默认是"wtpwebapps",把它改成"webapps",也就是tomcat
中发布项目所在的文件夹名字。
修改后关掉该页面，保存配置。这样就将项目部署到了tomcat安装目录下的webapp

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