★: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
-
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
-
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
-
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>
-
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
原文地址:https://www.cnblogs.com/w53064/p/8417101.html