Idea整合Maven开发web项目

一,创建Maven的web工程

1)不需要选择骨架,直接下一步

(2)写项目的坐标

(3)配置maven仓库

二,改变项目结构,添加依赖

(1)在项目中添加webapp,使其自动生成WEB-INF和web.xml

(2)目录如下

(3)pom.xml文件的编写(导入相关依赖)

需要手动将项目打成war包,在pom中添加<packaging>war</packaging>

<packaging>war</packaging>
   <dependencies>
		<dependency>
			<groupId>org.webjars</groupId>
			<artifactId>jquery</artifactId>
			<version>1.11.3</version>
		</dependency>

		<dependency>
			<groupId>com.github.pagehelper</groupId>
			<artifactId>pagehelper</artifactId>
			<version>4.2.1</version>
		</dependency>

		<dependency>
			<groupId>junit</groupId>
			<artifactId>junit</artifactId>
			<version>4.12</version>
			<scope>test</scope>
		</dependency>
		<!--添加spring支持 -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-core</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-beans</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-context</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aspects</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>

		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-aop</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-web</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-tx</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-webmvc</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<dependency>
			<groupId>org.springframework</groupId>
			<artifactId>spring-jdbc</artifactId>
			<version>4.3.7.RELEASE</version>
		</dependency>
		<!-- mysql的数据库驱动包 -->
		<dependency>
			<groupId>mysql</groupId>
			<artifactId>mysql-connector-java</artifactId>
			<version>5.1.21</version>
		</dependency>

		<!-- Mybatis 开发包 假设:5.0 add(Integer id) -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis-spring</artifactId>
			<version>1.2.0</version>
		</dependency>

		<dependency>
			<groupId>tk.mybatis</groupId>
			<artifactId>mapper</artifactId>
			<version>3.4.3</version>
		</dependency>

		<!-- Mybatis 和Spring的 整合包,是mybatis出的 add(String name) 要用 以后,依赖越来越多,几千条依赖 -->
		<dependency>
			<groupId>org.mybatis</groupId>
			<artifactId>mybatis</artifactId>
			<version>3.2.3</version>
		</dependency>
		<dependency>
			<groupId>com.mchange</groupId>
			<artifactId>c3p0</artifactId>
			<version>0.9.5.2</version>
		</dependency>

		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>jstl</artifactId>
			<version>1.2</version>
		</dependency>
		<dependency>
			<groupId>commons-codec</groupId>
			<artifactId>commons-codec</artifactId>
			<version>1.11</version>
		</dependency>

		<dependency>
			<groupId>javax.servlet</groupId>
			<artifactId>javax.servlet-api</artifactId>
			<version>4.0.1</version>
			<scope>provided</scope>
		</dependency>
		<!-- 下面两个包 commons-dbcp,commons-pool 是配置数据源的包 -->
		<dependency>
			<groupId>commons-dbcp</groupId>
			<artifactId>commons-dbcp</artifactId>
			<version>1.4</version>
		</dependency>

		<dependency>
			<groupId>commons-fileupload</groupId>
			<artifactId>commons-fileupload</artifactId>
			<version>1.3</version>
		</dependency>

		<dependency>
			<groupId>commons-pool</groupId>
			<artifactId>commons-pool</artifactId>
			<version>1.4</version>
		</dependency>

		<dependency>
			<groupId>org.apache.commons</groupId>
			<artifactId>commons-lang3</artifactId>
			<version>3.4</version>
		</dependency>

		<dependency>
			<groupId>com.alibaba</groupId>
			<artifactId>fastjson</artifactId>
			<version>1.2.31</version>
		</dependency>

		<dependency>
			<groupId>org.slf4j</groupId>
			<artifactId>slf4j-log4j12</artifactId>
			<version>1.7.2</version>
		</dependency>
		<!-- 下面的三个包是在配置事务的时候用到的 spring的依赖包 -->
		<dependency>
			<groupId>org.aspectj</groupId>
			<artifactId>aspectjweaver</artifactId>
			<version>1.7.0</version>
		</dependency>
		<dependency>
			<groupId>aopalliance</groupId>
			<artifactId>aopalliance</artifactId>
			<version>1.0</version>
		</dependency>
		<dependency>
			<groupId>cglib</groupId>
			<artifactId>cglib</artifactId>
			<version>3.1</version>
		</dependency>
		<!--jackson GSON fastJSON json-lib -->
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-databind</artifactId>
			<version>2.7.4</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-core</artifactId>
			<version>2.7.4</version>
		</dependency>
		<dependency>
			<groupId>com.fasterxml.jackson.core</groupId>
			<artifactId>jackson-annotations</artifactId>
			<version>2.7.4</version>
		</dependency>
	</dependencies>

	<build>
		<!-- 插件 -->
		<!--扫描文件夹 -->
		<resources>
			<resource>
				<directory>src/main/java</directory>
				<includes>
					<include>**/*.properties</include>
					<include>**/*.xml</include>
				</includes>
				<filtering>false</filtering>
			</resource>
			<resource>
				<directory>src/main/resources</directory>
				<includes>
					<include>**/*.properties</include>
					<include>**/*.xml</include>
				</includes>
				<filtering>false</filtering>
			</resource>
		</resources>
	</build>

(4)创建配置文件

mybatis全局配置文件的编写,创建sqlMapConfig.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 核心标签  -->
<configuration>
<typeAliases>
	<!-- 批量扫描实体类包名 -->
	<package name="com.ssm.bean"/>
</typeAliases>
</configuration>

spring全局配置文件编写,创建beans.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:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	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/mvc 
						http://www.springframework.org/schema/mvc/spring-mvc.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
						http://www.springframework.org/schema/context 
						http://www.springframework.org/schema/context/spring-context.xsd">
		<!-- 扫描接口 -->
		<context:component-scan base-package="com.ssm.service"></context:component-scan>
		<!-- 数据源   -->
		<context:property-placeholder location="classpath:jdbc.properties"/>
		
		<bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
			<property name="jdbcUrl" value="${jdbc.url}"></property>
			<property name="driverClass" value="${jdbc.driver}"></property>
			<property name="user" value="${jdbc.username}"></property>
			<property name="password" value="${jdbc.password}"></property>
		</bean>
		<!-- 工厂 -->
		<bean id="sqlSessionFactory" class="org.mybatis.spring.SqlSessionFactoryBean">
			<property name="dataSource" ref="dataSource"></property>
			<property name="configLocation" value="classpath:sqlMapConfig.xml"></property>
			<!-- 配置分页插件 -->
		     <property name="plugins">
		        <array>
		          <bean class="com.github.pagehelper.PageHelper">
		            <property name="properties">
		              <value>
		                dialect=mysql
		                reasonable=true
		              </value>
		            </property>
		          </bean>
		        </array>
		      </property>
			
		</bean>
		<!-- 接口扫描 -->
		<bean class="org.mybatis.spring.mapper.MapperScannerConfigurer">
		 	<property name="basePackage" value="com.ssm.mapper"></property>
		 	<property name="sqlSessionFactoryBeanName" value="sqlSessionFactory"></property>
		 </bean>
</beans>

数据库配置文件编写,创建db.properties

jdbc.url = jdbc\:mysql\:///数据库名称?characterEncoding=utf-8
jdbc.driver = com.mysql.jdbc.Driver
jdbc.username= 数据库账号
jdbc.password= 数据库密码

springmvc全局配置文件编写,创建springmvc.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:aop="http://www.springframework.org/schema/aop" 
	xmlns:tx="http://www.springframework.org/schema/tx"
	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/mvc 
						http://www.springframework.org/schema/mvc/spring-mvc.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
						http://www.springframework.org/schema/context 
						http://www.springframework.org/schema/context/spring-context.xsd">
		<!-- 将controller交给spring管理 -->
		<context:component-scan base-package="com.ssm.controller"></context:component-scan>
		<!-- 自动创建映射器和适配器 -->
		<mvc:annotation-driven/>
		<!-- InternalResourceViewResolver:视图解析器prefix:值就是文件夹的路径  prefix+逻辑视图+suffix-->
		<bean class="org.springframework.web.servlet.view.InternalResourceViewResolver">
				<property name="prefix" value="/WEB-INF/jsp/"></property>
				<property name="suffix" value=".jsp"></property>
		</bean>
		  <!-- 配置图片上传解析器 --> 
		 <bean id="multipartResolver" class="org.springframework.web.multipart.commons.CommonsMultipartResolver">
			<!-- 设定默认编码       -->         
			<property name="defaultEncoding" value="UTF-8"></property>
			<property name="maxUploadSize" value="10240000"></property>
		</bean>
		<!-- 配置拦截器,需要可以加上 -->
		<!--<mvc:interceptors>
			<mvc:interceptor>
				<mvc:mapping path="/**"/>
				<bean class="com.ssm.controller.LoginInterceptor"></bean>
			</mvc:interceptor>
		</mvc:interceptors>-->
		
</beans>

配置日志文件,创建log4j.properties

### direct log messages to stdout ###
log4j.appender.stdout=org.apache.log4j.ConsoleAppender
log4j.appender.stdout.Target=System.out
log4j.appender.stdout.layout=org.apache.log4j.PatternLayout
log4j.appender.stdout.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### direct messages to file mylog.log ###
log4j.appender.file=org.apache.log4j.FileAppender
log4j.appender.file.File=c:/mylog.log
log4j.appender.file.layout=org.apache.log4j.PatternLayout
log4j.appender.file.layout.ConversionPattern=%d{ABSOLUTE} %5p %c{1}:%L - %m%n

### set log levels - for more verbose logging change 'info' to 'debug' ###

log4j.rootLogger=debug, stdout

配置web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
  <display-name>ssm</display-name>
  <!-- 编码过滤器 -->
  <filter>
  		<filter-name>charcter</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>
  </filter>
  <filter-mapping>
  		<filter-name>charcter</filter-name>
  		<url-pattern>/*</url-pattern>
  </filter-mapping>
  <!-- 加载spring -->
  <listener>
  	<listener-class>org.springframework.web.context.ContextLoaderListener</listener-class>
  </listener>
  <context-param>
  	<param-name>contextConfigLocation</param-name>
  	<param-value>classpath:beans.xml</param-value>
  </context-param>
  <servlet>
  		<!-- 
  			会默认加载配置文件servletname-servlet.xml
  			必须放在WEB-INF下面
  		 -->
  		<servlet-name>springmvc</servlet-name>
  		<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
  		<init-param>
  			<param-name>contextConfigLocation</param-name>
  			<param-value>classpath:springmvc.xml</param-value>
  		</init-param>
  </servlet>
  <servlet-mapping>
  		<servlet-name>springmvc</servlet-name>
  		<url-pattern>*.do</url-pattern>
  </servlet-mapping>
  <welcome-file-list>
    <welcome-file>index.html</welcome-file>
    <welcome-file>index.htm</welcome-file>
    <welcome-file>index.jsp</welcome-file>
    <welcome-file>default.html</welcome-file>
    <welcome-file>default.htm</welcome-file>
    <welcome-file>default.jsp</welcome-file>
  </welcome-file-list>
</web-app>

三,配置本地tomcat

(1)点击Add Configuration

(2)按部就班点击OK

(3)最后点击apply,OK

(4)创建index.jsp,编写helloworld,启动tomcat访问

四,检测SpringMVC的可用性

(1)在index.jsp中添加一个表单提交

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<body>
<h2>Hello World!</h2>
<form action="${pageContext.request.contextPath}/student">
    姓名:<input type="text"><br>
    <input type="submit" value="提交">
</form>
</body>
</html>

(2)编写web层,写一个StudentController,转发到success.jsp页面,只是为了测试一下,不接收参数了。。。

@Controller
@RequestMapping("studeng")
public class StudengController {
    @RequestMapping("findAll")
    public String findAll(){
        return "success";
    }
}

(3)在jsp文件夹下创建success.jsp

<%@ page contentType="text/html;charset=UTF-8" language="java" %>
<html>
<head>
    <title>Title</title>
</head>
<body>
<h1>success</h1>
</body>
</html>

(4)在index页面点击提交

无论是否有参数,都会跳转到success.jsp页面

搞定

### 解决PyCharm无法加载Conda虚拟环境的方法 #### 配置设置 为了使 PyCharm 能够成功识别并使用 Conda 创建的虚拟环境,需确保 Anaconda 的路径已正确添加至系统的环境变量中[^1]。这一步骤至关重要,因为只有当 Python 解释器及其关联工具被加入 PATH 后,IDE 才能顺利找到它们。 对于 Windows 用户而言,在安装 Anaconda 时,默认情况下会询问是否将它添加到系统路径里;如果当时选择了否,则现在应该手动完成此操作。具体做法是在“高级系统设置”的“环境变量”选项内编辑 `Path` 变量,追加 Anaconda 安装目录下的 Scripts 文件夹位置。 另外,建议每次新建项目前都通过命令行先激活目标 conda env: ```bash conda activate myenvname ``` 接着再启动 IDE 进入工作区,这样有助于减少兼容性方面的问题发生概率。 #### 常见错误及修复方法 ##### 错误一:未发现任何解释器 症状表现为打开 PyCharm 新建工程向导页面找不到由 Conda 构建出来的 interpreter 列表项。此时应前往 Preferences/Settings -> Project:...->Python Interpreter 下方点击齿轮图标选择 Add...按钮来指定自定义的位置。按照提示浏览定位到对应版本 python.exe 的绝对地址即可解决问题。 ##### 错误二:权限不足导致 DLL 加载失败 有时即使指定了正确的解释器路径,仍可能遇到由于缺乏适当的操作系统级许可而引发的功能缺失现象。特别是涉及到调用某些特定类型的动态链接库 (Dynamic Link Library, .dll) 时尤为明显。因此拥有管理员身份执行相关动作显得尤为重要——无论是从终端还是图形界面触发创建新 venv 流程均如此处理能够有效规避此类隐患。 ##### 错误三:网络连接异常引起依赖下载超时 部分开发者反馈过因网速慢或者其他因素造成 pip install 操作中途断开进而影响整个项目的初始化进度条卡住的情况。对此可尝试调整镜像源加速获取速度或是离线模式预先准备好所需资源包后再继续后续步骤。 ---
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