maven 创建Java web项目

第一步创建项目

然后切换到Navigator视图 (在window--> Show View 下可以找到)

在 setings 下面设置项目的一些属性 (主要是jdk编译版本 web版本)

右键properties检查下Web Deployment Assembly设置有没有问题

如果WEB-INF下面缺少lib文件新建一个并右键Build Path

编写 pom.xml 加载jar包根据项目需求右键 Run as-> maven-installer

注意(如果配置完運行Tomcat一直報錯,配置文件檢查后沒問題,可能是jar包衝突)

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>ben</groupId>
<artifactId>sshDemo</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>sshDemo Maven Webapp</name>
<url>http://maven.apache.org</url>
<properties>
<spring.version>5.0.4.RELEASE</spring.version>
<aspectj.version>1.8.10</aspectj.version>
<cglib.version>3.2.5</cglib.version>
<hibernate.version>5.2.16.Final</hibernate.version>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
</properties>

<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>4.12</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>5.0.4.RELEASE</version>
</dependency>

<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${spring.version}</version>
</dependency>

<dependency>
<groupId>aopalliance</groupId>
<artifactId>aopalliance</artifactId>
<version>1.0</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${aspectj.version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjweaver</artifactId>
<version>${aspectj.version}</version>
</dependency>

<dependency>
<groupId>cglib</groupId>
<artifactId>cglib-nodep</artifactId>
<version>${cglib.version}</version>
</dependency>

<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-core</artifactId>
<version>5.2.16.Final</version>
</dependency>
<dependency>
<groupId>org.hibernate</groupId>
<artifactId>hibernate-c3p0</artifactId>
<version>5.2.16.Final</version>
</dependency>


<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-orm</artifactId>
<version>5.0.4.RELEASE</version>
</dependency>

<dependency>
<groupId>mysql</groupId>
<artifactId>mysql-connector-java</artifactId>
<version>5.1.46</version>
</dependency>

</dependencies>

<build>
<finalName>sshDemo</finalName>

</build>
</project>

配置Spring ApplicationContext.xml 整合了hibernate

這2個是整合用到的類
sessionFactory : org.springframework.orm.hibernate5.LocalSessionFactoryBean

dateSource (c3p0) : ComboPooledDataSource

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


    <!-- 读取配置文件 -->
    <context:property-placeholder
        ignore-unresolvable="true" location="classpath*:/applicationContext.properties" />

    <!-- 自动扫描包下面 类 属性 方法 上的注解 -->
    <context:component-scan base-package="com.sshDemo"></context:component-scan>

    <!-- 开启aop操作 -->
    <aop:aspectj-autoproxy></aop:aspectj-autoproxy>

    <bean id="sessionFactory"
        class="org.springframework.orm.hibernate5.LocalSessionFactoryBean">
        <property name="dataSource" ref="dataSource"></property>
        <property name="hibernateProperties">
            <props>
                <prop key="hibernate.connection.driver_class">${hibernate.connection.driver_class}</prop>
                <prop key="hibernate.connection.url">${hibernate.connection.url}</prop>
                <prop key="hibernate.connection.username">${hibernate.connection.username}</prop>
                <prop key="hibernate.connection.password">${hibernate.connection.password}</prop>
                <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop>
                <prop key="hibernate.dialect">${hibernate.dialect}</prop>
                <prop key="hibernate.current_session_context_class">${hibernate.current_session_context_class}</prop>
                <prop key="hibernate.connection.provider_class">${hibernate.connection.provider_class}</prop>
            </props>
        </property>
    </bean>
    <bean id="dataSource" class="com.mchange.v2.c3p0.ComboPooledDataSource">
        <property name="minPoolSize" value="10" />
        <property name="maxPoolSize" value="100" />
        <!-- 最大空闲时间,超过该时间则连接被丢弃。若为0则永不丢弃。Default: 0 -->
        <property name="maxIdleTime" value="1800" />
        <!-- 当连接池中的连接耗尽的时候c3p0一次同时获取的连接数。 -->
        <property name="acquireIncrement" value="3" />
        <!-- JDBC的标准参数，用以控制数据源内加载的PreparedStatements数量。但由于预缓存的statements属于单个connection而不是整个连接池。所以设置这个参数需要考虑到多方面的因素。如果maxStatements与maxStatementsPerConnection均为0，则缓存被关闭。 -->
        <property name="maxStatements" value="100" />
        <property name="initialPoolSize" value="10" />
        <!-- 每隔多少秒检查所有连接池中的空闲连接。 -->
        <property name="idleConnectionTestPeriod" value="120" />
    </bean>
</beans>

applicationContext.properties

## MySQL

hibernate.connection.driver_class=com.mysql.jdbc.Driver
hibernate.dialect=org.hibernate.dialect.MySQL5Dialect
hibernate.connection.driver_class=com.mysql.jdbc.Driver
hibernate.connection.url=jdbc:mysql://127.0.0.1:3306/heartstore
hibernate.connection.username=root
hibernate.connection.password=root

##Base

hibernate.current_session_context_class=thread
hibernate.connection.provider_class=org.hibernate.connection.C3P0ConnectionProvider
hibernate.show_sql=true
hibernate.format_sql true




## Oracle

#hibernate.dialect org.hibernate.dialect.Oracle8iDialect
#hibernate.dialect org.hibernate.dialect.Oracle9iDialect
#hibernate.dialect org.hibernate.dialect.Oracle10gDialect
#hibernate.connection.driver_class oracle.jdbc.driver.OracleDriver
#hibernate.connection.username ora
#hibernate.connection.password ora
#hibernate.connection.url jdbc:oracle:thin:@localhost:1521:orcl
#hibernate.connection.url jdbc:oracle:thin:@localhost:1522:XE


## PostgreSQL

#hibernate.dialect org.hibernate.dialect.PostgreSQLDialect
#hibernate.connection.driver_class org.postgresql.Driver
#hibernate.connection.url jdbc:postgresql:template1
#hibernate.connection.username pg
#hibernate.connection.password

配置 web.xml 整合了SpringMVC

<?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
http://www.springmodules.org/schema/cache/springmodules-cache.xsd
http://www.springmodules.org/schema/cache/springmodules-ehcache.xsd"
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">
<display-name>Archetype Created Web Application</display-name>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath*:/applicationContext.xml</param-value>
</context-param>

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

<servlet>
<servlet-name>springMVC</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
<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>/</url-pattern>
</servlet-mapping>
</web-app>

sprinMVC.xml

<?xml version="1.1" 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:mvc="http://www.springframework.org/schema/mvc" xmlns:aop="http://www.springframework.org/schema/aop"
    xsi:schemaLocation="http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd
        http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd
        http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd
        http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd">
    
    
    <context:component-scan base-package="com.sshDemo"/>
    <!-- 適配器注解驅動 -->
    <mvc:annotation-driven></mvc:annotation-driven>
    <!-- 定义JSP文件的位置 -->
    <bean
        class="org.springframework.web.servlet.view.InternalResourceViewResolver">
        <property name="prefix" value="/WEB-INF/view/" />
        <property name="suffix" value=".jsp" />
    </bean>
    <!-- ... -->

</beans>

運行試下 (需要設置TOMCAT運行配置)

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原文地址：https://www.cnblogs.com/temporary/p/8725990.html

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