在eclipse中，用maven创建一个web项目工程

亦凉 2021-10-14 18:27 365阅读 0赞

[![返回主页][aHR0cHM6Ly93d3cuY25ibG9ncy5jb20vU2tpbnMvY3VzdG9tL2ltYWdlcy9sb2dvLmdpZg]][aHR0cHM6Ly93d3cuY25ibG9ncy5jb20vU2tpbnMvY3VzdG9tL2ltYWdlcy9sb2dvLmdpZg 1]

# [在eclipse中，用maven创建一个web项目工程][eclipse_maven_web] #

1.在eclipse中用maven创建项目，右键new>>Maven Project

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDEzODY1OS0xNjYyNzE0MTYzLnBuZw][]

2.点击next继续

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3.点击next继续，选择maven-archetype-webapp，

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDIxMDk0MS0xNDU3NDU4NDI0LnBuZw][]

4.点击next继续，填写Group id和Artifact id， Version默认，Package可以不填

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDIyNTYyOC0yMDIyNTgwNTQyLnBuZw][]

5. 然后点击finish，完成web项目的创建：

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDIzMjMxNi00MjI2NDg3MzYucG5n][]

在创建web项目完成后，可能出现的问题及其解决方法：

Q0: 缺少/src/main/java文件夹

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2pvbmVzQXJpdmVu_size_16_color_FFFFFF_t_70 1][]

解决办法：点击项目右键>>Build Path>>Configure Build Path

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2pvbmVzQXJpdmVu_size_16_color_FFFFFF_t_70 2][]

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选择自己的jre即可解决

Q1：项目忽然出现 The superclass "javax.servlet.http.HttpServlet" was not found on the Java Build Path 的错误

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDI0OTc1My02NDc1ODk2Mi5wbmc][]

Solve：点击项目右键>>Build Path>>Configure Build Path

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDMwMjcwNi0xNTg4MDEyNzI2LnBuZw][]

在弹出的窗口，选择Server Runtime

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点击next，选择一个自己配置好的tomcat服务

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDM1OTI2OS0zNzk3NTgzODUucG5n][]

点击finish，然后apply and Close即可

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDQyMTAwMy0xMTQ2MDA3OTM1LnBuZw][]

Q2:在更改Dynamic Web Module的版本时(2.3->2.5)，出现Cannot change version of project facet Dynamic web module to 2.5错误

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDQzMTg3OC0xMjUxODY1MTYyLnBuZw][]

说明：我们用Eclipse创建Maven结构的web项目的时候选择了Artifact Id为maven-artchetype-webapp，由于这个catalog比较老，用的servlet还是2.3的，而一般现在至少都是2.5，在Project Facets里面修改Dynamic web module为2.5的时候就会出现Cannot change version of project facet Dynamic web module to 2.5

Solve：

1.更改项目的web.xml文件，把servlet改为2.5

(1)改之前：

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

1 <!DOCTYPE web-app PUBLIC
     2 
     3  "-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN"
     4 
     5  "http://java.sun.com/dtd/web-app_2_3.dtd" >
     6 
     7  
     8 
     9 <web-app>
    10 
    11   <display-name>Archetype Created Web Application</display-name>
    12 
    13 </web-app>

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

(2)改之后：

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

1 <?xml version="1.0" encoding="UTF-8"?>
     2 
     3 <web-app version="2.5"
     4 
     5     xmlns="http://java.sun.com/xml/ns/javaee"
     6 
     7     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     8 
     9     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
    10 
    11     http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd">
    12 
    13   <display-name>Archetype Created Web Application</display-name>
    14 
    15 </web-app>

![复制代码][aHR0cHM6Ly9jb21tb24uY25ibG9ncy5jb20vaW1hZ2VzL2NvcHljb2RlLmdpZg]

2.打开Navigator视图：window>>Show View，选择Navigator

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDUzNDIyMi0xOTU2MzgxNDQwLnBuZw][]

3.在Navigator视图下，打开项目下的.settings目录下的org.eclipse.jdt.core.prefs，把1.5全部改为1.6

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDU0NzE3NS0xMTExODE5MjYwLnBuZw][]

4. 打开org.eclipse.wst.common.component，把project-version="1.5.0"改成project-version="1.6.0"

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDYxMDAzNC0xNTQ1MTY5NTU0LnBuZw][]

5. 打开org.eclipse.wst.common.project.facet.core.xml，把<installed facet="java" version="1.5"/>改成<installed facet="java" version="1.6"/>，把  <installed facet="jst.web" version="2.3"/>改成  <installed facet="jst.web" version="2.5"/>

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDYzODgzMS0xMjE2MDIyMTQ0LnBuZw][]

到此，已经Dynamic web module 2.3修改成2.5版本

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDY1Mzk1Ni04NTI0MDczMTcucG5n][]

Q3:jdk版本不对，默认是jdk1.5，版本过低

Solve：点击项目右键>>properties>>Java Build Path>>Libraries>>JRE System Library>>Edit，

选择当前环境的jdk

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDcxMzAzNC05NTkxMjk0ODIucG5n][]

点击finish>>Apply and Close退出

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDcyOTI1My0xMDA3NjgwNzIucG5n][]

Q4：设置部署程序集(Web Deployment Assembly)，部署时的文件发布路径

Solve：点击项目右键>>properties>> Deployment Assembly

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDc0MjM0Ny0xMTMxMTI3ODI1LnBuZw][]

Q5：如何配置tomcat server？

Solve：打开Servers视图：window>>Show View，选择Servers，在servers视图窗，右键new>>server

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDc1MDYxMy02OTY0NTgxMjAucG5n][]

点击要添加server的工程>>Add>>Finish

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDgxMDI2OS04MTg2MjM1NjgucG5n][]

双击添加好的server将其打开，在Overview也签中，配置好tomcat运行环境(本地tomcat安装目录)和访问端口

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDgyNjAwMy0xNzY2MDU2NDA3LnBuZw][]

在modules页签中，配置好访问的根路劲

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDgzMzc2OS0zNTA2MzE0NzYucG5n][]

配置好server，并运行后访问工程成功！

![aHR0cHM6Ly9pbWFnZXMyMDE3LmNuYmxvZ3MuY29tL2Jsb2cvMTI4OTc3MS8yMDE3MTIvMTI4OTc3MS0yMDE3MTIwNjIwNDg1MDk4OC0yNDkyNzMwODQucG5n][]

**标签: [maven][], [web][]**

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[maven]: /images/20211015/8ac4e7271afa4d71813b91d5af460275.pngtag/maven/
[web]: /images/20211015/8ac4e7271afa4d71813b91d5af460275.pngtag/web/