一、创建Maven项目
1. 创建 Maven Project
2. 手动创建项目结构
新建项目后只有一个 src/main/resources, 需要手动创建项目结构
3. 配置jre
修改pom.xml中的配置
<plugins>
<!-- 根据自己的JRE版本修改maven默认的JRE编译版本 -->
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source>
<target>1.8</target>
</configuration>
</plugin>
</plugins>
如何项目报错, 需要更新maven。右击项目> 点击Maven >点击Update Project…
二、搭建SpringMVC
1. pom.xml文件中添加springmvc依赖
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
2. 创建springmvc配置文件
在src/main/resource下创建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:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.xsd">
<!-- 开启注解 -->
<mvc:annotation-driven />
<!-- Spring MVC不处理静态资源 -->
<mvc:default-servlet-handler />
<!-- 视图解析器 -->
<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/back/" />
<property name="suffix" value=".jsp"></property>
</bean>
</beans>
三、搭建Spring
1. pom.xml文件中添加spring依赖
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context-support</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
2. 创建spring-context配置文件
在src/main/resource下创建spring-context.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:mvc="http://www.springframework.org/schema/mvc"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:util="http://www.springframework.org/schema/util"
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-3.0.xsd
http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd
http://www.springframework.org/schema/util http://www.springframework.org/schema/util/spring-util-3.0.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">
<bean class="org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor"></bean>
<!-- 注解支持 -->
<context:annotation-config/>
<!-- 设置需要进行Spring注解扫描的类包 -->
<context:component-scan base-package="com.demo.*"/>
</beans>
3. web.xml中配置spring
这里把spring与springmvc配置到一块了
<!-- 定义前端控制器springmvc -->
<servlet>
<servlet-name>spring-mvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<!-- 指定路径 -->
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:spring-*.xml</param-value>
</init-param>
<!-- 随spring启动而启动 -->
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>spring-mvc</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
到此可以调用接口及页面了
四、运行Maven项目
1. MyEclipse 中
直接把项目加载到Tomcat中然后运行就可以
2. 打包发布
右击项目，选择"Debug As"或"Run As"，再选择 Maven 命令
常用maven命令
clean：清除目标目录中的生成结果。
generate-sources：开发环境与代码分离，很少使用，执行这个命令可以通过查看.classpath和.project两个文件来查看变化。
install：在本地库中安装jar
test：运行项目中的单元测试
package：根据项目生成jar文件
tomcat*:run：启动tomcat，前提是在项目的pom.xml文件中添加了tomcat插件
eclipse:eclipse：生成Eclipse项目文件，即.classpath和.project文件
compile：编译源代码
dependency:sources：下载项目依赖的jar包的源码包
五、搭建Mybatis
1. pom.xml中添加Mybatis的依赖jar包
<!-- mybatis -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis</artifactId>
<version>3.2.3</version>
</dependency>
<!-- mybatis-spring//无缝整合mybatis+spring -->
<dependency>
<groupId>org.mybatis</groupId>
<artifactId>mybatis-spring</artifactId>
<version>1.1.1</version>
</dependency>
<!-- cglib代理 -->
<dependency>
<groupId>cglib</groupId>
<artifactId>cglib</artifactId>
<version>2.2.2</version>
</dependency>
2.创建mybatis-config.xml配置文件
<?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>
<settings>
<!-- 全局地开启或关闭配置文件中的所有映射器已经配置的任何缓存 -->
<setting name="cacheEnabled" value="true" />
<!-- 设置超时时间，它决定驱动等待数据库响应的秒数 -->
<setting name="defaultStatementTimeout" value="3000" />
<!-- 是否开启自动驼峰命名规则（camel case）映射 -->
<setting name="mapUnderscoreToCamelCase" value="true" />
<!-- 代理 -->
<!-- 指定 Mybatis 创建具有延迟加载能力的对象所用到的代理工具 -->
<setting name="proxyFactory" value="CGLIB" />
<!-- 延迟加载 -->
<setting name="lazyLoadingEnabled" value="true" />
</settings>
</configuration>
3. spring-context.xml中配置mybatis
<!-- 配置mybatis, 绑定c3p0 -->
<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
<property name="dataSource" ref="dataSource"></property>
<property name="configLocation" value="classpath:mybatis-config.xml"></property>
<property name="mapperLocations" value="classpath:mapper/*Mapper.xml"/>
</bean>
<!-- 扫描生成所有dao层 -->
<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
<property name="basePackage" value="com.demo.**.mapper"></property>
<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
</bean>
六、连接数据库
1. pom.xml中配置 数据源+数据库 的依赖jar包
<!-- c3p0 数据库连接池 -->
<dependency>
<groupId>com.mchange</groupId>
<artifactId>c3p0</artifactId>
<version>0.9.5.2</version>
</dependency>
<!-- 数据库 -->
<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>6.0.6</version>
</dependency>
2.在spring-context.xml配置c3p0数据源
<!-- 配置c3p0 -->
<!-- 连接池 -->
<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
<property name="driverClass" value="com.mysql.jdbc.Driver"></property>
<property name="jdbcUrl" value="jdbc:mysql://localhost/demo?characterEncoding=utf8&serverTimezone=UTC"></property>
<property name="user" value="root"></property>
<property name="password" value="123456"></property>
<property name="minPoolSize" value="1"></property>
<property name="maxPoolSize" value="5"></property>
<property name="initialPoolSize" value="1"></property>
<property name="acquireIncrement" value="1"></property>
</bean>
3. 配置spring声明式事务管理，pom.xml中添加 声明式事务的依赖jar包
<!-- spring-tx -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-tx</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
<!-- spring-jdbc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>4.2.0.RELEASE</version>
</dependency>
4. 在spring-context.xml配置事务管理器
<!-- 配置spring声明式事务管理 -->
<!-- 配置事务管理器 -->
<bean id="transactionManager" class="org.springframework.jdbc.datasource.DataSourceTransactionManager">
<property name="dataSource" ref="dataSource"></property>
</bean>
<!-- 事务注解驱动，标注@Transactional的类和方法将具有事务性 -->
<tx:annotation-driven transaction-manager="transactionManager"/>
七、分页配置
mybatis-config.xml 中添加配置
<properties>
<property name="dialect" value="mysql" />
<property name="pageSqlId" value=".*Page$" />
</properties>
<plugins>
<plugin interceptor="com.cjy.common.mybatis.page.PageInterceptor"></plugin>
</plugins>
从先到后必须是：
properties => settings => typeAliases => typeHandlers =>objectFactory =>objectWrapperFactory => reflectorFactory =>plugins => environments =>databaseIdProvider => mappers
八、JSP依赖
<!--servlet依赖-->
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>servlet-api</artifactId>
<version>2.5</version>
</dependency>
<!--JSP依赖-->
<dependency>
<groupId>javax.servlet.jsp</groupId>
<artifactId>javax.servlet.jsp-api</artifactId>
<version>2.3.3</version>
</dependency>
<!--JSTL表达式的依赖-->
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>jstl-api</artifactId>
<version>1.2</version>
</dependency>
<!-- JSTL实现包 -->
<dependency>
<groupId>org.apache.taglibs</groupId>
<artifactId>taglibs-standard-impl</artifactId>
<version>1.2.5</version>
</dependency>
报错: The absolute uri: http://java.sun.com/jsp/jstl/core cannot be resolved in either web.xml…
JSTL 1.0 声明：
<%@ taglib uri=“http://java.sun.com/jstl/core” prefix=“c” %>
JSTL 1.1 之后声明：
<%@ taglib uri=“http://java.sun.com/jsp/jstl/core” prefix=“c” %>
必须有 JSTL实现包
关于${ctx}无效: 在jsp页面头加:<%@ page isELIgnored=“false” %> 问题得以解决。
九、问题处理
1.上传数据乱码问题
在web.xml中添加
<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>
2.文件上传失败问题
在spring-context.xml中添加
<!-- 文件上传 -->
<bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver"
p:defaultEncoding="utf-8"
p:maxUploadSize="52428880"
p:uploadTempDir="upload"
p:maxInMemorySize="40960"></bean>
pom.xml中添加
<!-- 文件上传组件 -->
<dependency>
<groupId>commons-fileupload</groupId>
<artifactId>commons-fileupload</artifactId>
<version>1.2.2</version>
</dependency>
<dependency>
<groupId>commons-io</groupId>
<artifactId>commons-io</artifactId>
<version>2.0.1</version>
</dependency>
3.使用本地jar包问题
pom.xml中引用本地jar包, 需要在build标签中添加插件
<dependency>
<groupId>QRCode</groupId>
<artifactId>QRCode</artifactId>
<version>3.0</version>
<scope>system</scope>
<systemPath>${project.basedir}/src/main/resources/lib/QRCode.jar</systemPath>
</dependency>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<configuration>
<webResources>
<resource>
<!-- 存放本地jar的文件夹 src/main/resources/lib -->
<directory>${project.basedir}/src/main/resources/lib</directory>
<!-- 目标lib目录 WEB-INF/lib/ -->
<targetPath>WEB-INF/lib/</targetPath>
<includes>
<!-- 匹配所有jar包 -->
<include>*.jar</include>
</includes>
</resource>
</webResources>
</configuration>
</plugin>
4.项目启动报 java.sql.SQLException 数据库时区设置
在 jdbc.properties url 中加入 &serverTimezone=UTC 设置时区
参考文档
https://blog.youkuaiyun.com/Eternal_Blue/article/details/90400895
扫一扫
1770
被折叠的 条评论
为什么被折叠?
到【灌水乐园】发言
