无法通过file-》new找到marven project

配置方法
点击MyEclipse的Window>>Customize Perspective>>Menu Visibility>>File >>New找到marven project点击ok

xml顶部错误

    Cannot detect Web Project version. Please specify version of Web Project through <version> configuration property of war plugin. E.g.: <plugin> <artifactId>maven-
     war-plugin</artifactId> <configuration> <version>3.0</version> </configuration> </plugin>

那是因为项目未指定maven war编译插件的错误
解决方法如下：

在pom.xml文件中加入：

 <build>
                <plugin>
                    <artifactId>maven-war-plugin</artifactId>
                    <version>2.4</version>
                    <configuration>
                        <version>3.0</version>
                    </configuration>
                </plugin>
            </plugins>
            <finalName>webserver</finalName>
  </build>

myeclipse默认webapp项目的jre版本是4.4或者4.5

方法1、在项目的pom.xml中添加

 <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>
            <encoding>UTF-8</encoding>
        </configuration>
    </plugin>

然后maven-》update project即可更新为1.8

方法2、在Maven的settings.xml文件中指定全局默认的Jdk版本

<profiles>
        <profile>
           <id>jdk-1.8</id>
           <activation>
              <activeByDefault>true</activeByDefault>
              <jdk>1.8</jdk>
           </activation>
           <properties>
              <maven.compiler.source>1.8</maven.compiler.source>
              <maven.compiler.target>1.8</maven.compiler.target>
              <maven.compiler.compilerVersion>1.8</maven.compiler.compilerVersion>
           </properties>
         </profile>

      </profiles>

marven webapp项目jsp错误

The superclass “javax.servlet.http.HttpServlet” was not found on the Java Build Path

pom中添加以下内容即可

<dependency>  
    <groupId>javax.servlet</groupId>  
    <artifactId>servlet-api</artifactId>  
    <version>2.5</version>  
    <scope>provided</scope>  
</dependency>  

默认的骨架和web项目的骨架

web项目注意添加servlet依赖