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  • Maven项目编译时报错缺少tools.jar

    [ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project ERP: Compilation failure
    [ERROR] Unable to locate the Javac Compiler in:
    [ERROR] C:Program FilesJavajre7..libtools.jar
    [ERROR] Please ensure you are using JDK 1.4 or above and
    [ERROR] not a JRE (the com.sun.tools.javac.Main class is required).
    [ERROR] In most cases you can change the location of your Java
    [ERROR] installation by setting the JAVA_HOME environment variable.
    [ERROR] -> [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/MojoFailureException

    解决方案


     步骤一Window -> Preferences -> Java -> installed JREs ->点击"Add"按钮,选择默认的"Standard VM", 点击"Next >", 点击"JRE home"右边的"Directory"选择目录 C:Program FilesJavajdk1.7.0_60jre,“确定”回 到"Installed JREs"界面,勾选刚添加的"jdk1.7.0_60"。

    步骤二Window -> Preferences -> Java -> installed JREs -> 点选界面左侧的"JaveSE-1.7",然后在右侧勾选"jdk1.7.0_60"。

    步骤三在<eclipse安装目录>/eclipse.ini文件中添加以下两行:(一定要加在-startup之前,注意以下是两行):
    -vm
    C:Program FilesJavajdk1.7.0_60jreinjavaw.exe

    步骤四重启Eclipse,一切OK了。

    问题分析


     系统装了两个JRE,应该用JDK中的那个JRE

    java
    |—jdk1.7.0_60
       |—jre
    |—jre7

    系统默认使用java/jre7,但是该目录下没有tools.jar。所以需要使用java/jdk1.7.0_60/jre,该目录下存在tools.jar包

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  • 原文地址:https://www.cnblogs.com/sylvia-liu/p/3812114.html
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