spring配置一个基本的web项目-创新互联
项目目录
记得要在Deployment Assembly里将项目外部依赖包 WEB-INF/lib 加进去
gradle项目,需要的包,其实这里没有用aop,如果用了,就需要其它的包了.还有第三方的包等等.
这里的maven中央库,用的是阿里云的.
build.gradle文件内容
apply plugin: 'java'
repositories {
maven{ url 'http://maven.aliyun.com/nexus/content/groups/public/'}
}
configurations {
//compile.exclude module: 'commons-logging'
}
dependencies { compile group: 'jstl', name: 'jstl', version: '1.2' compile("org.springframework:spring-context:${springVersion}")
compile("org.springframework:spring-jdbc:${springVersion}")
compile group: 'org.springframework', name: 'spring-web', version: "${springVersion}"
compile group: 'org.springframework', name: 'spring-webmvc', version: "${springVersion}"
compile group: 'org.apache.commons', name: 'commons-dbcp2', version: '2.1.1'
compile group: 'commons-lang', name: 'commons-lang', version: '2.6'
compile group: 'ch.qos.logback', name: 'logback-classic', version: '1.1.3'
compile group: 'org.logback-extensions', name: 'logback-ext-spring', version: '0.1.2'
compile group: 'org.slf4j', name: 'jcl-over-slf4j', version: '1.7.12'
testCompile 'junit:junit:4.12'
}gradle.properties文件内容
springVersion=4.3.3.RELEASE
maven的包
pom.xml文件内容
<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/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example</groupId>
<artifactId>weblearn</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>jar</packaging>
<name>weblearn</name>
<url>http://maven.aliyun.com/nexus/content/groups/public/</url>
<build>
<plugins>
<plugin>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.3</version>
<configuration>
<source>1.8</source>
<target>1.8</target>
<excludes>
<exclude>commons-logging:commons-logging</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
<properties>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<org.springframework.version>4.3.3.RELEASE</org.springframework.version>
<org.slf4j.version>1.7.21</org.slf4j.version>
<org.junit.version>4.12</org.junit.version>
</properties>
<dependencies>
<!-- https://mvnrepository.com/artifact/javax.servlet.jsp.jstl/javax.servlet.jsp.jstl-api -->
<dependency>
<groupId>javax.servlet.jsp.jstl</groupId>
<artifactId>javax.servlet.jsp.jstl-api</artifactId>
<version>1.2.1</version>
</dependency>
<!-- https://mvnrepository.com/artifact/junit/junit -->
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>${org.junit.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-core -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-context -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-context</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-test -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-test</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-beans -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-beans</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-web -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/org.springframework/spring-webmvc -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- JDBC Data Access Library (depends on spring-core, spring-beans, spring-context,
spring-tx) Define this if you use Spring's JdbcTemplate API (org.springframework.jdbc.*) -->
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-jdbc</artifactId>
<version>${org.springframework.version}</version>
</dependency>
<!-- https://mvnrepository.com/artifact/commons-dbcp/commons-dbcp -->
<dependency>
<groupId>commons-dbcp</groupId>
<artifactId>commons-dbcp</artifactId>
<version>1.4</version>
</dependency>
<dependency>
<groupId>ch.qos.logback</groupId>
<artifactId>logback-classic</artifactId>
<version>1.1.3</version>
</dependency>
<dependency>
<groupId>org.logback-extensions</groupId>
<artifactId>logback-ext-spring</artifactId>
<version>0.1.2</version>
</dependency>
<dependency>
<groupId>org.slf4j</groupId>
<artifactId>jcl-over-slf4j</artifactId>
<version>1.7.12</version>
</dependency>
</dependencies>
</project>web.xml文件,这里用了Dispatchservlet,用了logback,还自定义了webAppRootKey值,这里没有明确指明spring的应用上下文,于是用了默认的文件,即同web.xml目录下的weblearn3-servlet.xml
<?xml version="1.0" encoding="UTF-8"?> <web-app id="WebApp_ID" version="3.0" xmlns="http://java.sun.com/xml/ns/javaee" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"> <servlet> <servlet-name>weblearn3</servlet-name> <servlet-class> org.springframework.web.servlet.DispatcherServlet </servlet-class> <load-on-startup>1</load-on-startup> </servlet> <servlet-mapping> <servlet-name>weblearn3</servlet-name> <url-pattern>/</url-pattern> </servlet-mapping> <context-param> <param-name>webAppRootKey</param-name> <param-value>weblearn3.root</param-value> </context-param> <context-param> <param-name>logbackConfigLocation</param-name> <param-value>/WEB-INF/config/logback3.xml</param-value> </context-param> <listener> <listener-class>ch.qos.logback.ext.spring.web.LogbackConfigListener</listener-class> </listener> </web-app>
与web.xml同一目录下的weblearn3-servlet.xml文件,这里用了,引入其它的配置文件,如数据库配置文件,还用了自动扫描,还使用了JSTL,指明解析的view名对应的物理文件在/WEB-INF/views/目录下,文件后缀名为.jsp
<?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" xmlns:tx="http://www.springframework.org/schema/tx" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:p="http://www.springframework.org/schema/p" xmlns:security="http://www.springframework.org/schema/security" xsi:schemaLocation=" 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/beans http://www.springframework.org/schema/beans/spring-beans.xsd http://www.springframework.org/schema/security http://www.springframework.org/schema/security/spring-security.xsd "> <import resource="datasource.xml"/> <mvc:resources mapping="/resources/**" location="/resources/" /> <mvc:annotation-driven/> <context:component-scan base-package="com.example.weblearn3"></context:component-scan> <bean id="jdbcTemplate" class="org.springframework.jdbc.core.JdbcTemplate"> <constructor-arg ref="dataSource" /> </bean> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="viewClass" value="org.springframework.web.servlet.view.JstlView" /> <property name="prefix" value="/WEB-INF/views/"/> <property name="suffix" value=".jsp"/> </bean> </beans>
与web.xml同目录下的datasource.xml文件,这里用了dbcp2
<?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 "> <bean id="dataSource" class="org.apache.commons.dbcp2.BasicDataSource" destroy-method="close"> <property name="driverClassName" value="com.mysql.cj.jdbc.Driver" /> <property name="url" value="jdbc:mysql://localhost:3306/myweibo?serverTimezone=UTC" /> <property name="username" value="root" /> <property name="password" value="123456" /> <property name="initialSize" value="5" /> <!-- <property name="maxActive" value="10" /> --> </bean> </beans>
配置一个controller,HomeController.java文件,这里的home方法没有明确指明value值,所以默认该方法就是项目的主页.也可以指明@RequestMapping(value = "/", method = RequestMethod.GET),但是没有必要.
package com.example.weblearn3.controller;
import java.io.PrintWriter;
import java.io.StringWriter;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
@Controller
@RequestMapping({"/", "/homepage","index.html"})
public class HomeController {
private Logger logger = LoggerFactory.getLogger(HomeController.class);
@RequestMapping(method = RequestMethod.GET)
public String home() {
try {
int a = 1/0;
}catch (Exception e){
StringWriter sw = new StringWriter();
PrintWriter pw = new PrintWriter(sw);
e.printStackTrace(pw);
logger.error("Main错误：" + sw.toString());
}
System.out.println("home");
return "home";
}
}访问http://localhost:8080/weblearn3/即可
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