Eclipse+Maven 项目创建

Posted 2020-10-23 w53064

★：jar包下载不了的话可能是镜像里没有这个版本，换个低版本的就行

★：eclipse工程validating很慢，可以先关掉验证（一般对项目没什么影响）

★：eclipse工程pom.xml文件报错 到仓库 删除所有以.lastupdate结尾的文件

★：maven下载jar包慢

解决办法就是到setting文件中，配上<mirror>标签的内容 -->

加在<mirrors>里面

<mirror>

<id>alimaven</id>

<name>aliyun maven</name>

<url>http://maven.aliyun.com/nexus/content/groups/public/</url>

<mirrorOf>central</mirrorOf>

</mirror>

0：maven .setting文件配置jdk版本

在你的maven/config/setting.xml文件的<properties>属性中加上这段代码

<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>

1：项目创建

在 Package Explorer 空白处右键创建Maven Project

 

1. 为你的web项目配置tomcat环境

   在你的项目右键→Bulid Path→Add Libraries→server runtime→添加tomcat

   

   完成后如图所示：

   

   3.更改Deployment Assembly设置

   将图中用不到的三个配置Remove掉

   

   4.修改Project Fact

   

    

   在pom.xml文件中的bulid节点加上

   <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>

   

    

   然后对项目alt+F5 更新项目

    

    

    

   

    

2. 创建web.xml文件

   

   6.在pom文件中添加依赖

   ①：配置<dependencies>标签

   <properties>

   <!-- Spring版本号 -->

   <spring.version>4.3.8.RELEASE</spring.version>

   <!-- log4j日志文件管理包版本 -->

   <slf4j.version>1.6.6</slf4j.version>

   <log4j.version>1.2.12</log4j.version>

   <!-- junit版本号 -->

   <junit.version>4.10</junit.version>

   <!-- mybatis版本号 -->

   <mybatis.version>3.2.1</mybatis.version>

   </properties>

    

   <dependencies>

    

   <dependency>

   <groupId>javax</groupId>

   <artifactId>javaee-api</artifactId>

   <version>8.0</version>

   <scope>provided</scope>

   </dependency>

    

   <!-- javaee-web-api包 注意和项目使用的JDK版本对应 -->

   <dependency>

   <groupId>javax</groupId>

   <artifactId>javaee-web-api</artifactId>

   <version>8.0</version>

   <scope>provided</scope>

   </dependency>

   <!-- 添加Spring依赖 -->

   <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.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-aop</artifactId>

   <version>${spring.version}</version>

   </dependency>

   <dependency>

   <groupId>org.springframework</groupId>

   <artifactId>spring-aspects</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-jdbc</artifactId>

   <version>${spring.version}</version>

   </dependency>

   <dependency>

   <groupId>org.springframework</groupId>

   <artifactId>spring-web</artifactId>

   <version>${spring.version}</version>

   </dependency>

    

   <!--单元测试依赖 -->

   <dependency>

   <groupId>junit</groupId>

   <artifactId>junit</artifactId>

   <version>${junit.version}</version>

   <scope>test</scope>

   </dependency>

    

   <!-- 日志文件管理包 -->

   <!-- log start -->

   <dependency>

   <groupId>log4j</groupId>

   <artifactId>log4j</artifactId>

   <version>${log4j.version}</version>

   </dependency>

   <dependency>

   <groupId>org.slf4j</groupId>

   <artifactId>slf4j-api</artifactId>

   <version>${slf4j.version}</version>

   </dependency>

   <dependency>

   <groupId>org.slf4j</groupId>

   <artifactId>slf4j-log4j12</artifactId>

   <version>${slf4j.version}</version>

   </dependency>

   <!-- log end -->

    

   <!--spring单元测试依赖 -->

   <dependency>

   <groupId>org.springframework</groupId>

   <artifactId>spring-test</artifactId>

   <version>${spring.version}</version>

   <scope>test</scope>

   </dependency>

    

   <!--mybatis依赖 -->

   <dependency>

   <groupId>org.mybatis</groupId>

   <artifactId>mybatis</artifactId>

   <version>${mybatis.version}</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>

    

   <!-- Json -->

   <!-- 格式化对象，方便输出日志 -->

   <dependency>

   <groupId>com.alibaba</groupId>

   <artifactId>fastjson</artifactId>

   <version>1.2.6</version>

   </dependency>

   <dependency>

   <groupId>org.codehaus.jackson</groupId>

   <artifactId>jackson-mapper-asl</artifactId>

   <version>1.9.13</version>

   </dependency>

   <!-- 上传组件包 -->

   <dependency>

   <groupId>commons-fileupload</groupId>

   <artifactId>commons-fileupload</artifactId>

   <version>1.3.1</version>

   </dependency>

   <dependency>

   <groupId>commons-io</groupId>

   <artifactId>commons-io</artifactId>

   <version>2.4</version>

   </dependency>

   <dependency>

   <groupId>commons-codec</groupId>

   <artifactId>commons-codec</artifactId>

   <version>1.9</version>

   </dependency>

   </dependencies>

   7：创建ssm框架用到的配置文件

   7.1：创建log4j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
   

   7.2：在mybatis文件夹下创建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="com.ssm.model" />

   </typeAliases>

   </configuration>

   7.3：在spring文件夹下创建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:p="http://www.springframework.org/schema/p"

   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">

    

   <!-- 扫描controller（controller层注入） -->

   <context:component-scan base-package="com.ssm.controller"/>

    

   <!-- 对模型视图添加前后缀 -->

   <bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver"

   p:prefix="/WEB-INF/view/" p:suffix=".jsp"/>

   </beans>

   7.4：在spring文件夹中简历spring-mybatis.xml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"

   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/ssm" />

   <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/ssm/dao/*.xml" />

   <property name="configLocation" value="classpath:mybatis/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.ssm.dao" />

   <property name="sqlSessionFactoryBeanName" value="sqlSessionFactory" />

   </bean>

   </beans>

   7.5：在spring中创建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:context="http://www.springframework.org/schema/context"

   xmlns:aop="http://www.springframework.org/schema/aop"

   xsi:schemaLocation="

   http://www.springframework.org/schema/beans

   http://www.springframework.org/schema/beans/spring-beans.xsd

   http://www.springframework.org/schema/aop

   http://www.springframework.org/schema/aop/spring-aop.xsd

   http://www.springframework.org/schema/context

   http://www.springframework.org/schema/context/spring-context.xsd">

    

   <!-- 引入jdbc配置文件 -->

   <bean id="propertyConfigurer"

   class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">

   <property name="locations">

   <list>

   <value>classpath:properties/*.properties</value>

   <!--要是有多个配置文件，只需在这里继续添加即可 -->

   </list>

   </property>

   </bean>

    

    

    

   <!-- 配置数据源 -->

   <bean id="dataSource"

   class="org.springframework.jdbc.datasource.DriverManagerDataSource">

   <!-- 不使用properties来配置 -->

   <!-- <property name="driverClassName" value="com.mysql.jdbc.Driver" />

   <property name="url" value="jdbc:mysql://localhost:3306/learning" /> <property

   name="username" value="root" /> <property name="password" value="[email protected]"

   /> -->

   <!-- 使用properties来配置 -->

   <property name="driverClassName">

   <value>${jdbc.driverClassName}</value>

   </property>

   <property name="url">

   <value>${jdbc.url}</value>

   </property>

   <property name="username">

   <value>${jdbc.user}</value>

   </property>

   <property name="password">

   <value>${jdbc.password}</value>

   </property>

   </bean>

    

   <!-- 自动扫描了所有的XxxxMapper.xml对应的mapper接口文件，这样就不用一个一个手动配置Mpper的映射了，只要Mapper接口类和Mapper映射文件对应起来就可以了。 -->

   <bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">

   <property name="basePackage" value="com.ssm.dao" />

   </bean>

    

   <!-- 配置Mybatis的文件 ，mapperLocations配置**Mapper.xml文件位置，configLocation配置mybatis-config文件位置 -->

   <bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">

   <property name="dataSource" ref="dataSource" />

   <property name="mapperLocations" value="classpath*:com/ssm/mapper/*.xml" />

   <property name="configLocation" value="classpath:mybatis/mybatis-config.xml" />

   <!-- <property name="typeAliasesPackage" value="com.tiantian.ckeditor.model"

   /> -->

   </bean>

    

   <!-- 自动扫描注解的bean -->

   <context:component-scan base-package="com.ssm.service" />

    

   </beans>

   7.6:在properties下创建jdbc.properties

   jdbc.driverClassName=com.mysql.jdbc.Driver

   jdbc.url=jdbc:mysql://localhost:3306/ssm

   jdbc.user=root

   jdbc.password=123456

3. 创建java文件

   8.1 目录结构

   

    

   8.2 UserController

   package com.ssm.controller;

    

   import javax.annotation.Resource;

    

   import org.springframework.stereotype.Controller;

   import org.springframework.web.bind.annotation.RequestMapping;

   import org.springframework.web.servlet.ModelAndView;

    

   import com.ssm.model.User;

   import com.ssm.service.UserService;

    

   @Controller

   public class UserController {

   @Resource

   private UserService userService;

    

   @RequestMapping("/")

   public ModelAndView getIndex(){

   ModelAndView mav = new ModelAndView("index");

   User user = userService.selectUserById(1);

   mav.addObject("user", user);

   return mav;

   }

   }

    

   8.3 UserDao

   package com.ssm.dao;

    

   import com.ssm.model.User;

    

   public interface UserDao {

    

   public User selectUserById(Integer userId);

    

   }

    

   8.4 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.ssm.dao.UserDao">

   <!--设置domain类和数据库中表的字段一一对应，注意数据库字段和domain类中的字段名称不致，此处一定要！-->

   <resultMap id="BaseResultMap" type="com.ssm.model.User">

   <id column="USER_ID" property="userId" jdbcType="INTEGER" />

   <result column="USER_NAME" property="userName" jdbcType="CHAR" />

   <result column="USER_PASSWORD" property="userPassword" jdbcType="CHAR" />

   <result column="USER_EMAIL" property="userEmail" jdbcType="CHAR" />

   </resultMap>

   <!-- 查询单条记录 -->

   <select id="selectUserById" parameterType="int" resultMap="BaseResultMap">

   SELECT * FROM t_user WHERE USER_ID = #{userId}

   </select>

   </mapper>

    

   8.5 User.java

   package com.ssm.model;

    

   public class User {

   private Integer userId;

   private String userName;

   private String userPassword;

   private String userEmail;

    

   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 getUserPassword() {

   return userPassword;

   }

    

   public void setUserPassword(String userPassword) {

   this.userPassword = userPassword;

   }

    

   public String getUserEmail() {

   return userEmail;

   }

    

   public void setUserEmail(String userEmail) {

   this.userEmail = userEmail;

   }

    

   @Override

   public String toString() {

   return "User [userId=" + userId + ", userName=" + userName

   + ", userPassword=" + userPassword + ", userEmail=" + userEmail

   + "]";

   }

    

   }

    

   8.6 UserService

   package com.ssm.service;

    

   import com.ssm.model.User;

   import org.springframework.stereotype.Service;

    

    

   public interface UserService {

   User selectUserById(Integer userId);

    

   }

    

   8.7 UserServiceImpl

    

   package com.ssm.service;

    

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

   import org.springframework.stereotype.Service;

    

   import com.ssm.dao.UserDao;

   import com.ssm.model.User;

    

   @Service

   public class UserServiceImpl implements UserService{

   @Autowired

   private UserDao userDao;

    

   public User selectUserById(Integer userId) {

   return userDao.selectUserById(userId);

    

   }

    

   }

    

   9：数据库搭建

   CREATE TABLE `t_user` (

   `USER_ID` int(11) NOT NULL AUTO_INCREMENT,

   `USER_NAME` char(30) NOT NULL,

   `USER_PASSWORD` char(10) NOT NULL,

   `USER_EMAIL` char(30) NOT NULL,

   PRIMARY KEY (`USER_ID`),

   KEY `IDX_NAME` (`USER_NAME`)

   ) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=utf8

    

    

    

   INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (1, ‘谢彦杰‘, ‘12345678‘, ‘[email protected]‘);

   INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (2, ‘eangie‘, ‘123‘, ‘[email protected]‘);

   INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (3, ‘eangie‘, ‘123‘, ‘[email protected]‘);

   INSERT INTO t_user (USER_ID, USER_NAME, USER_PASSWORD, USER_EMAIL) VALUES (4, ‘eangie‘, ‘123‘, ‘[email protected]‘);

    

    

   10.在src/main/webapp/WEB-INF/view下创建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>Insert title here</title>

   </head>

   <body>

   <h2>Hello World!</h2>

   ${user.userId}<br>

   ${user.userName}<br>

   ${user.userPassword}

   </body>

   </html>

    

4. web.xml更新

   <!-- 读取spring配置文件 -->

   <context-param>

   <param-name>contextConfigLocation</param-name>

   <param-value>classpath:spring/applicationContext.xml</param-value>

   </context-param>

   <!-- 设计路径变量值 -->

   <context-param>

   <param-name>webAppRootKey</param-name>

   <param-value>springmvc.root</param-value>

   </context-param>

    

    

   <!-- Spring字符集过滤器 -->

   <filter>

   <filter-name>SpringEncodingFilter</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>SpringEncodingFilter</filter-name>

   <url-pattern>/*</url-pattern>

   </filter-mapping>

    

   <!-- 日志记录 -->

   <context-param>

   <!-- 日志配置文件路径 -->

   <param-name>log4jConfigLocation</param-name>

   <param-value>classpath:log4j.properties</param-value>

   </context-param>

   <context-param>

   <!-- 日志页面的刷新间隔 -->

   <param-name>log4jRefreshInterval</param-name>

   <param-value>6000</param-value>

   </context-param>

   <listener>

   <listener-class>org.springframework.web.util.Log4jConfigListener</listener-class>

   </listener>

    

   <listener>

   <listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>

   </listener>

    

   <!-- springMVC核心配置 -->

   <servlet>

   <servlet-name>dispatcherServlet</servlet-name>

   <servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>

   <init-param>

   <param-name>contextConfigLocation</param-name>

   <!--spingMVC的配置路径 -->

   <param-value>classpath:spring/spring-mvc.xml</param-value>

   </init-param>

   <load-on-startup>1</load-on-startup>

   </servlet>

   <!-- 拦截设置 -->

   <servlet-mapping>

   <servlet-name>dispatcherServlet</servlet-name>

   <url-pattern>/</url-pattern>

   </servlet-mapping>

    

   <!-- 错误跳转页面 -->

   <error-page>

   <!-- 路径不正确 -->

   <error-code>404</error-code>

   <location>/WEB-INF/errorpage/404.jsp</location>

   </error-page>

   <error-page>

   <!-- 没有访问权限，访问被禁止 -->

   <error-code>405</error-code>

   <location>/WEB-INF/errorpage/405.jsp</location>

   </error-page>

   <error-page>

   <!-- 内部错误 -->

   <error-code>500</error-code>

   <location>/WEB-INF/errorpage/500.jsp</location>

   </error-page>

   12.项目右键 runAs/run on Server

   

   然后一直点下去就行