Question

我正在尝试召唤蚂蚁任务＆＃34; scp＆＃34;来自java。但我收到了错误。我在eclipse类路径中添加了jar文件。当我执行＆＃34; build.xml＆＃34;在eclipse中，但在执行java文件时无效。

我的Xml文件：的build.xml

<project name="Project" default="copy" basedir=".">
    <target name="copy">
    <scp file="root:password@{ip}:/root/install.log"  sftp="true" trust="true" todir="."/>          
</target>
</project>

java代码

    File buildFile = new File("build.xml");
    Project p = new Project();
    p.setUserProperty("ant.file", buildFile.getAbsolutePath());

    System.out.println(buildFile.getAbsolutePath());
    p.init();
    ProjectHelper helper = ProjectHelper.getProjectHelper();
    p.addReference("ant.projectHelper", helper);
    helper.parse(p, buildFile);
    p.executeTarget(p.getDefaultTarget());

当我执行它时，我收到以下错误。

Exception in thread "main"     C:\Users\607166161\workspace_getAFix_Deployed\pvt_npm_utility\build.xml:3: Could not create task or type of type: scp.

Ant could not find the task or a class this task relies upon.

This is common and has a number of causes; the usual 
 solutions are to read the manual pages then download and
install needed JAR files, or fix the build file: 
- You have misspelt 'scp'.
    Fix: check your spelling.
- The task needs an external JAR file to execute
 and this is not found at the right place in the classpath.
   Fix: check the documentation for dependencies.
   Fix: declare the task.
  - The task is an Ant optional task and the JAR file and/or libraries
   implementing the functionality were not found at the time you
 yourself built your installation of Ant from the Ant sources.
   Fix: Look in the ANT_HOME/lib for the 'ant-' JAR corresponding to the
  task and make sure it contains more than merely a META-INF/MANIFEST.MF.
  If all it contains is the manifest, then rebuild Ant with the needed
 libraries present in ${ant.home}/lib/optional/ , or alternatively,
 download a pre-built release version from apache.org
 - The build file was written for a later version of Ant
   Fix: upgrade to at least the latest release version of Ant
 - The task is not an Ant core or optional task 
 and needs to be declared using <taskdef>.
 - You are attempting to use a task defined using 
<presetdef> or <macrodef> but have spelt wrong or not 
   defined it at the point of use

Remember that for JAR files to be visible to Ant tasks implemented
in ANT_HOME/lib, the files must be in the same directory or on the
classpath

 Please neither file bug reports on this problem, nor email the
Ant mailing lists, until all of these causes have been explored,
as this is not an Ant bug.
at     org.apache.tools.ant.UnknownElement.getNotFoundException(UnknownElement.java:493)
at org.apache.tools.ant.UnknownElement.makeObject(UnknownElement.java:391)
at org.apache.tools.ant.UnknownElement.maybeConfigure(UnknownElement.java:158)
at org.apache.tools.ant.Task.perform(Task.java:363)
at org.apache.tools.ant.Target.execute(Target.java:341)
at org.apache.tools.ant.Target.performTasks(Target.java:369)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1216)
at org.apache.tools.ant.Project.executeTarget(Project.java:1185)
at com.bt.npm.utility.ant.AntTask.main(AntTask.java:25)

从java程序调用ant任务

0 个答案: