工具

• Eclipse 4.6 (Neon)
• jdk 1.8
• maven 3.3.3

创建web项目

maven 命令创建(https://www.cnblogs.com/wkrbky/p/6352188.html)

mvn archetype:create 
  -DgroupId=com.liwc 
  -DartifactId=fish 
  -DarchetypeArtifactId=maven-archetype-webapp

创建好导入IDE

eclipse 创建

1. 选择项目类型webapp

   
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2. 填写Group Id、artifact Id

   
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3. 创建完目录结构

   
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配置

1. pom.xml配置

<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>com.liwc</groupId>
    <artifactId>fish</artifactId>
    <packaging>war</packaging>
    <version>0.0.1-SNAPSHOT</version>
    <name>fish Maven Webapp</name>
    <url>http://maven.apache.org</url>
    
    
    <properties>
        <!-- 编码utf8 -->
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
    </properties>
    
    <dependencies>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit</artifactId>
            <version>3.8.1</version>
            <scope>test</scope>
        </dependency>
        
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>javax.servlet-api</artifactId>
            <version>3.1.0</version>
            <scope>provided</scope><!-- provided表明该包只在编译和测试的时候有效 -->
        </dependency>
        
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        
    </dependencies>
    
    <build>
        <finalName>fish</finalName>
        <plugins>
            <!-- jdk1.8编译插件 -->
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
        </plugins>
        
    </build>
</project>

2. jdk build path配置 1.8

   
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更新maven 项目
项目右键--maven--update project

3. 部署tomcat

   
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4. 启动并打开浏览器访问 http://127.0.0.1:8081/fish/
   

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5. 大功告成

ps 更改Dynamic Web Module 3.0

1. web.xml

<!DOCTYPE web-app PUBLIC
 "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
 "http://java.sun.com/dtd/web-app_2_3.dtd" >

<web-app>
  <display-name>Archetype Created Web Application</display-name>
</web-app>

<?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" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
    version="3.0">
        
    <display-name>Archetype Created Web Application</display-name>

</web-app>

2. .settings 文件
   更改项目.settings文件 org.eclipse.wst.common.project.facet.core.xml
   jst.web: 2.3==>3.0

<?xml version="1.0" encoding="UTF-8"?>
<faceted-project>
  <fixed facet="wst.jsdt.web"/>
  <installed facet="jst.web" version="3.0"/>
  <installed facet="wst.jsdt.web" version="1.0"/>
  <installed facet="java" version="1.8"/>
</faceted-project>

项目地址 https://gitee.com/licerlee/fish