一、MAVEN下载安装
maven的下载地址:http://maven.apache.org/download.cgi
解压之后路径 D:\java\apache-maven-3.6.2;
新增系统变量【MAVEN_HOME】,变量名替换成自己本地解压路径
系统变量【Path】追加值:%MAVEN_HOME%\bin
运行cmd,输入mvn –version或者mvn –v;如果看见下图则说明maven安装配置完毕
本地仓储配置文件:D:\java\apache-maven-3.6.2\conf\settings.xml
在maven目录下创建本地存储文件夹repository,设置本地存储路径 D:\java\apache-maven-3.6.2\repository
<localRepository>D:\java\apache-maven-3.6.2\repository</localRepository>
直接访问maven<localRepository>D:\java\apache-maven-3.6.2\repository</localRepository>公共仓库的速度比较慢,所以推荐使用阿里的maven仓库镜像,在mirrors节点下,新增如下内容
<mirror>
<id>aliyun</id>
<name>aliyun</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<mirrorOf>central</mirrorOf>
</mirror>
设置默认jdk,在profiles节点下,新增如下内容(可以省略,在pom.xml配置也行)
<profile>
<id>nexus</id>
<repositories>
<repository>
<id>central</id>
<url>http://repo.maven.apache.org/maven2</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
<repository>
<id>ansj-repo</id>
<name>ansj Repository</name>
<url>http://maven.nlpcn.org/</url>
<snapshots>
<enabled>false</enabled>
</snapshots>
</repository>
</repositories>
</profile>
二、MAVEN配置
Maven项目目录结构
|----src
| |----main
| | |----java —— java文件
| | |----resource ——资源文件
| | |----webapp ——jsp/html/css/image/js文件
| |----test
| | |----java ——测试java文件
| | |----resource ——资源文件
|----target ——项目输出位置
|----pom.xml ——maven项目的标志
eclipse设置Maven
在Window----Preferences中找到Maven节点----User Setting,设置如下图:
点击Installations节点,添加maven runtime如下图所示
三、eclipse创建Maven工程
点击File----New----Maven Project(默认有的话)或者File----New----Other,选择maven文件夹,点击Maven Project如下图所示
点击Next,选择默认工作空间位置,选择web类型,再点击Next
填写GroupID、ArtifactID,点击Finish完成maven项目web工程的创建
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
四、配置的修改
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
(1).找到maven工程所在目录下org.eclipse.wst.common.project.facet.core.xml此文件
(2).maven工程下的web.xml文件替换为
<?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).在项目上右键,找到Maven属性下的Update Project
(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,更新完毕再一次查看Dynamic Web Module是否为3.1
右键项目--Properties--Deployment Assembly,移除target
五、案例测试
目录结构
- Pom.xml再添加如下内容
<properties>
<srping.version>4.0.2.RELEASE</srping.version>
<mybatis.version>3.2.8</mybatis.version>
<slf4j.version>1.7.12</slf4j.version>
<log4j.version>1.2.17</log4j.version>
</properties>
<dependencies>
<!-- spring框架包 start -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-oxm</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-aop</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.apache.geronimo.bundles</groupId>
<artifactId>aspectjweaver</artifactId>
<version>1.6.8_2</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-expression</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${srping.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${srping.version}</version>
</dependency>
<!-- spring框架包 end -->
<!-- mybatis框架包 start -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>${mybatis.version}</version>
</dependency>
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.2.2</version>
</dependency>
<!-- mybatis框架包 end -->
<!-- 数据库驱动 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>8.0.17</version>
</dependency>
<!-- 导入dbcp的jar包,用来在applicationContext.xml中配置数据库 -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<!-- jstl标签类 -->
<dependency>
<groupId>jstl</groupId>
<artifactId>jstl</artifactId>
<version>1.2</version>
</dependency>
<!-- log start -->
<dependency>
<groupId>log4j</groupId>
<artifactId>log4j</artifactId>
<version>${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 -->
<!-- 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 start -->
<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>1.10</version>
</dependency>
<!-- 上传组件包 end -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.1.0</version>
<scope>provided</scope>
</dependency>
<!-- java ee包 -->
<dependency>
<groupId>javax</groupId>
<artifactId>javaee-api</artifactId>
<version>7.0</version>
<scope>provided</scope>
</dependency>
</dependencies>
2.datasource.properties
mysql8的驱动名称不是com.mysql.jdbc.Driver;格外注意url的写法
datasource.driverClassName=com.mysql.cj.jdbc.Driver
datasource.userName=root
datasource.userPassword=123456
datasource.url=jdbc:mysql://127.0.0.1:3306/test?useUnicode=true&characterEncoding=UTF-8&useSSL=false&serverTimezone=UTC
3. log4j.properties
#定义LOG输出级别
log4j.rootLogger=INFO,Console,File
#定义日志输出目的地为控制台
log4j.appender.Console=org.apache.log4j.ConsoleAppender
log4j.appender.Console.Target=System.out
#可以灵活的指定日志输出格式,下面一行是指定具体的格式
log4j.appender.Console.layout=org.apache.log4j.PatternLayout
log4j.appender.Console.layout.ConversionPattern=[%c]-%m%n
#mybatis显示SQL语句日志配置 net.cxp.blog.dao是你的dao接口所在的包名
#log4j.logger.org.mybatis=DEBUG
log4j.logger.com.lymn.it.mapper=DEBUG
#文件大小到达指定尺寸的时候产生一个新的文件
log4j.appender.File=org.apache.log4j.RollingFileAppender
#指定输出目录
log4j.appender.File.File=d:/logs/ssm.log
#定义文件最大大小
log4j.appender.File.MaxFileSize=10MB
#输出所有日志,如果换成DEBUG表示输出DEBUG以上级别日志
log4j.appender.File.Threshold=DEBUG
log4j.appender.File.layout=org.apache.log4j.PatternLayout
log4j.appender.File.layout.ConversionPattern=[%p][%d{yyyy-MM-dd HH\:mm|\:ss}][%c]%m%n
4. 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:p="http://www.springframework.org/schema/p"
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">
<!-- 自动扫描该包,使SpringMVC认为包下用了@controller注解的类是控制器,此处必须排除掉@Service组件 -->
<context:component-scan base-package="com.lymn.it.controller" />
<!-- 会自动注册RequestMappingHandlerMapping与RequestMappingHandlerAdapter两个Bean,这是Spring MVC
为@Controller分发请求所必需的。启动SpringMVC的注解功能,完成请求和注解POJO的映射 -->
<mvc:annotation-driven/>
<!-- 视图解析器 -->
<!-- 定义跳转的文件的前后缀 ,视图模式配置 -->
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<!-- 这里的配置我的理解是自动给后面action的方法return的字符串加上前缀和后缀,变成一个 可用的url地址 -->
<property name="prefix" value="/WEB-INF/jsp/" />
<property name="suffix" value=".jsp" />
</bean>
<!--对静态资源文件的访问 -->
<!-- 针对springMVC的restful风格的url而言,配置了 -->
<mvc:resources mapping="/images/**" location="/WEB-INF/images/" />
<mvc:resources mapping="/css/**" location="/WEB-INF/css/" />
</beans>
5.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" xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx"
xmlns:aop="http://www.springframework.org/schema/aop" xmlns:task="http://www.springframework.org/schema/task"
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
http://www.springframework.org/schema/tx
http://www.springframework.org/schema/tx/spring-tx.xsd
http://www.springframework.org/schema/aop
http://www.springframework.org/schema/aop/spring-aop.xsd
http://www.springframework.org/schema/task
http://www.springframework.org/schema/task/spring-task.xsd">
<!-- 配置包含注解的扫描路径,但是不包括controller -->
<context:component-scan base-package="com.lymn.it.*">
<context:exclude-filter type="annotation"
expression="org.springframework.stereotype.Controller" />
</context:component-scan>
<!-- PropertyPlaceholderConfigurer 是 BeanFactory 后置处理器的实现,也是 BeanFactoryPostProcessor
接口的一个实现。 允许将上下文(配置文件)中的属性值放在另一个单独的标准 JavaProperties 文件中去。在 XML 文件中用类似 EL
表达式的 ${key} 替换指定的 properties 文件中的值 -->
<!-- <bean id="placeHolder"
class="org.springframework.beans.factory.config.PropertyPlaceholderConfigurer">
<property name="location" value="classpath:config/datasource.properties"></property>
多个数据源写法
<property name="locations">
<list>
<value>classpath:config/datasource1.properties</value>
<value>classpath:config/datasource2.properties</value>
</list>
</property>
</bean> -->
<!-- Spring2.5 以后,引入了简化的引入外部文件的方式 -->
<context:property-placeholder location="classpath:datasource.properties" />
<!-- Spring提供了的数据源,每个连接请求时都新建一个连接 -->
<bean id="dataSource"
class="org.springframework.jdbc.datasource.DriverManagerDataSource">
<property name="driverClassName" value="${datasource.driverClassName}"></property>
<property name="url" value="${datasource.url}"></property>
<property name="username" value="${datasource.userName}"></property>
<property name="password" value="${datasource.userPassword}"></property>
</bean>
<!-- spring和MyBatis完美整合,不需要mybatis的配置映射文件 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<!-- 扫描entity包 使用别名 -->
<property name="typeAliasesPackage" value="com.lymn.it.model"></property>
<!-- 配置MyBaties全局配置文件:mybatis-config.xml -->
<!-- <property name="configLocation" value="classpath:mybatis-config.xml" /> -->
<property name="dataSource" ref="dataSource" />
<!-- 自动扫描mapping.xml文件 -->
<property name="mapperLocations" value="classpath:com/lymn/it/mapper/*.xml"></property>
</bean>
<!-- mapper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.lymn.it.mapper" />
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
<!-- (事务管理)transaction manager -->
<bean id="transactionManager"
class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource" />
</bean>
<!-- 事务增强,这里用的是spring提供的特性 -->
<tx:advice id="tx" transaction-manager="transactionManager">
<tx:attributes>
<tx:method name="select*" read-only="true" />
<tx:method name="find*" read-only="true" />
<tx:method name="get*" read-only="true" />
<tx:method name="has*" read-only="true" />
<tx:method name="count*" read-only="true" />
<tx:method name="search*" read-only="true" />
</tx:attributes>
</tx:advice>
<aop:config>
<aop:pointcut id="pc"
expression="execution(* com.lymn.it.service.impl..*.*(..))" />
<!--把事务控制在Service层 -->
<aop:advisor pointcut-ref="pc" advice-ref="tx" />
</aop:config>
</beans>
6.model--User
package com.lymn.it.model;
public class User {
private Integer userid;
private String username;
private String password;
private String email;
private String phone;
private Integer status;
private String code;
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;
}
public String getEmail() {
return email;
}
public void setEmail(String email) {
this.email = email;
}
public String getPhone() {
return phone;
}
public void setPhone(String phone) {
this.phone = phone;
}
public Integer getStatus() {
return status;
}
public void setStatus(Integer status) {
this.status = status;
}
public String getCode() {
return code;
}
public void setCode(String code) {
this.code = code;
}
@Override
public String toString() {
return "User [userid=" + userid + ", username=" + username + ", password=" + password + ", email=" + email
+ ", phone=" + phone + ", status=" + status + ", code=" + code + "]";
}
}
7.mapper-UserMapper.java
package com.lymn.it.mapper;
import java.util.List;
import com.lymn.it.model.User;
public interface UserMapper {
public List<User> getAllUsers();
public User getUserById(int userid);
public boolean deleteUserById(int userid);
public boolean insertUser(User user);
public boolean updateUserById(User user);
}
mapper-UserMapper.java
<?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.lymn.it.mapper.UserMapper">
<select id="getAllUsers" resultType="User">
SELECT * FROM user
</select>
<select id="getUserById" parameterType="int" resultType="User">
SELECT *
FROM user WHERE userid = #{userid}
</select>
<insert id="insertUser" parameterType="User"
useGeneratedKeys="true" keyProperty="userid">
INSERT INTO s_user(username,password,email,phone)
VALUES(#{username},#{password},#{email},#{phone})
</insert>
<update id="updateUserById" parameterType="User">
UPDATE user SET username = #{username},
password = #{password},
email = #{email},
phone = #{phone}
WHERE
userid = #{userid}
</update>
<delete id="deleteUserById" parameterType="int">
DELETE FROM user WHERE userid = #{userid}
</delete>
</mapper>
8.service-UserService.java
package com.lymn.it.service;
import java.util.List;
import com.lymn.it.model.User;
public interface UserService {
public List<User> getAllUsers();
public User getUserById(int userid);
public boolean deleteUserById(int userid);
public boolean insertUser(User user);
public boolean updateUserById(User user);
}
service-UserServiceImpl.java
package com.lymn.it.service.impl;
import java.util.List;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import com.lymn.it.mapper.UserMapper;
import com.lymn.it.model.User;
import com.lymn.it.service.UserService;
@Service
public class UserServiceImpl implements UserService {
@Autowired
UserMapper userMapper;
@Override
public List<User> getAllUsers() {
return userMapper.getAllUsers();
}
@Override
public User getUserById(int userid) {
return userMapper.getUserById(userid);
}
@Override
public boolean deleteUserById(int userid) {
return userMapper.deleteUserById(userid);
}
@Override
public boolean insertUser(User user) {
return userMapper.insertUser(user);
}
@Override
public boolean updateUserById(User user) {
return userMapper.updateUserById(user);
}
}
9.controller-UserController
package com.lymn.it.controller;
import java.util.List;
import java.util.Map;
import org.apache.log4j.Logger;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import com.lymn.it.model.User;
import com.lymn.it.service.UserService;
@Controller
public class UserController {
@Autowired
UserService userService;
Logger logger=Logger.getLogger(UserController.class);
@RequestMapping(value="/user")
public String user(Map<Object,Object> map) {
logger.info("查询所有用户数据");
List<User> userList = userService.getAllUsers();
map.put("user", userList);
logger.info("查询完毕,返回页面");
return "user";
}
}
10.web.xml添加如下配置
<!-- spring容器配置 -->
<context-param>
<param-name>contextConfigLocation</param-name>
<!-- 注意,spring加载配置文件 -->
<param-value>
classpath:spring-mybatis.xml
</param-value>
</context-param>
<!-- spring容器监听器 -->
<listener>
<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
</listener>
<!--springMVC的核心分发器 -->
<servlet>
<servlet-name>spring-mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定Spring的配置文件 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-mvc.xml</param-value>
</init-param>
<!-- 启动加载一次 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring-mvc</servlet-name>
<!-- 此处可以可以配置成*.do 适配Struts的习惯 -->
<url-pattern>/</url-pattern>
</servlet-mapping>
<!-- 防止Spring内存溢出监听器 -->
<listener>
<listener-class>org.springframework.web.util.IntrospectorCleanupListener</listener-class>
</listener>
<!-- 解决工程编码过滤器 -->
<filter>
<filter-name>encodingFilter</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>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
11.jsp/user.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8"
pageEncoding="UTF-8"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>User</title>
</head>
<body>
<h1>${requestScope.user}</h1>
</body>
12.建数据库test,然后在创建表
CREATE TABLE `user` (
`userid` INT(11) NOT NULL AUTO_INCREMENT,
`username` VARCHAR(255) DEFAULT NULL,
`password` VARCHAR(255) DEFAULT NULL,
`email` VARCHAR(255) DEFAULT NULL,
`phone` VARCHAR(255) DEFAULT NULL,
`status` VARCHAR(255) NOT NULL DEFAULT ‘0‘,
`code` VARCHAR(255) DEFAULT NULL,
PRIMARY KEY (`userid`)
) ENGINE=INNODB AUTO_INCREMENT=16 DEFAULT CHARSET=utf8;
13.项目部署
配置 Tomcat 访问权限,tomcat中tomcat-user.xml的配置(tomcat根目录/conf/tomcat-users.xml)
<role rolename="manager-gui"/>
<role rolename="manager-script"/>
<role rolename="manager-jmx"/>
<role rolename="manager-status"/>
<user password="123456" username="root"
roles="manager-gui,manager-script,manager-jmx,manager-status" />
双击 tomcat 解压包中 bin 目录下的 startup.bat 命令进行启动Tomcat服务器。在浏览器地址来中进行访问http://127.0.0.1:8080/manager/
输入用户名root,密码123456进行登录,如果顺利则请进入下一步。
配置maven的setting.xml
在 conf/setting.xml 文件中的标签 <servers> 添加如下内容
<server>
<!--通过标签名字让 maven 去关联我们的 Tomcat 服务器-->
<id>tomcat8</id>
<!--username 和 password 一定要和 tomcat 中的 tomcat_user.xml 中一致-->
<username>root</username>
<password>123456</password>
</server>
在 pom.xml 文件的plugins子节点中添加如下内容
<plugin>
<groupId>org.apache.tomcat.maven</groupId>
<artifactId>tomcat7-maven-plugin</artifactId>
<version>2.2</version>
<configuration>
<url>http://127.0.0.1:8080/manager/text</url>
<!--关联id-->
<server>tomcat8</server>
<username>root</username>
<password>123456</password>
<!--访问的路径(项目名)-->
<path>/ssm01</path>
<update>true</update>
</configuration>
</plugin>
先运行Tomcat目录下/bin/startup.bat
然后右击项目Run As–Maven build,在Goals中输入:clean install tomcat7:redeploy
访问如下图表示配置成功
附:maven命令
执行命令
1)Run as → clean install
2)Run as → tomcat7:deploy 注:第1次部署执行
3)Run as → tomcat7:redeploy 注:第2次或以后需要重新发布执行
4)Run as → tomcat7:run 注:部署到 tomcat 中启动
在此过程中遇到的错误
启动tomcat,在进行编译构建
用Mybatis去操作底层数据库的时候,需要用到xml配置文件,一般我们是把配置文件和dao放置在同一层目录。操作maven项目的时候,我们可能会遇到无法读取到dao对应的mapper.xml文件。在pom.xml的build节点中添加如下内容
<resources>
<resource>
<directory>src/main/resources</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
</resource>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.properties</include>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
或者
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.8</version>
<executions>
<execution>
<id>add-resource</id>
<phase>generate-resources</phase>
<goals>
<goal>add-resource</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
再或者
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>build-helper-maven-plugin</artifactId>
<version>1.8</version>
<executions>
<execution>
<id>add-resource</id>
<phase>generate-resources</phase>
<goals>
<goal>add-resource</goal>
</goals>
<configuration>
<resources>
<resource>
<directory>src/main/java</directory>
<includes>
<include>**/*.xml</include>
</includes>
</resource>
</resources>
</configuration>
</execution>
</executions>
</plugin>
原文地址:https://blog.51cto.com/14553187/2439821