【maven 報錯】maven項目執行maven install時報錯Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode)

 

在使用maven新建的web項目中，執行

 

執行如上的這兩個操作，報錯：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.5.1:compile (default-compile) on project bioligyInfo: Fatal error compiling: tools.jar not found: C:\Program Files\Java\jre1.8.0_73\..\lib\tools.jar -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException





[ERROR] Failed to execute goal org.apache.maven.plugins:maven-war-plugin:2.2:war (default-war) on project bioligyInfo: Error assembling WAR: webxml attribute is required (or pre-existing WEB-INF/web.xml if executing in update mode) -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

上面的兩種錯誤，提示的很明顯：

錯誤1：

 

其實不用從maven下載插件，只需要保證你的pom.xml文件中有如下的信息即可：

 <build>
      <plugins>
          <plugin>
              <artifactId>maven-war-plugin</artifactId>
              <configuration>
                  <version>2.5</version>
              </configuration>
          </plugin>
      </plugins>
  </build>
  
  <properties>                                                                                                
       <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>                                  
       <spring.version>4.1.4.RELEASE</spring.version>                                                      
       <hibernate.version>4.3.8.Final</hibernate.version>                                                  
       <jackson.version>2.5.0</jackson.version>                                                            
                                                                                                           
   </properties>  

 

錯誤2：

 

 提示找不到web.xml文件

解決方法：

1》如果你沒有配置web.xml文件，那就創建web.xml文件

2》如果你配置了web.xml文件，還有這樣的錯誤，那就是你的web.xml文件不能被你項目讀取到

如下，項目中web.xml的位置如下：

 

而我們需要讓項目讀取到它：

因為web.xml文件的路徑如下：src\main\webapp\WEB-INF\web.xml

 

如果依舊無法解決，那就在pom.xml文件中配置如下：

  <build>
      <plugins>
          <plugin>
              <artifactId>maven-war-plugin</artifactId>
              <configuration>
                  <version>2.5</version>
              <webXml>src\main\webapp\WEB-INF\web.xml</webXml>
              </configuration>
          </plugin>
      </plugins>
  </build>

這樣指定到具體的文件上  就可以解決這問題了。