poi 3.2 SecurityException HPSFException signer information does not match signer information of othe...

SecurityException: class "org.apache.poi.hpsf.HPSFException"'s signer information does not match signer information of other classes in the same package

运行以下代码：

 

try  {
    FileInputStream fis  =   new  FileInputStream( " e:\\test.doc " );
    WordExtractor wordExtractor  =   new  WordExtractor(fis);
    System.out.println( " Word文件的内容： " );
    System.out.println(wordExtractor.stripFields(wordExtractor.getText()));
}  catch  (FileNotFoundException e) {
    e.printStackTrace();
}  catch  (IOException e) {
    e.printStackTrace();
}

 

报“SecurityException: class "org.apache.poi.hpsf.HPSFException"'s signer information does not match signer information of other classes in the same package”异常。

 

原因：

      WEB-INF/lib目录下有poi-2.5.jar和poi-3.2.jar冲突了。

解决办法：

       删掉poi-2.5.jar，问题搞定。

转载于:https://www.cnblogs.com/BlueThinking/archive/2009/03/20/1417825.html