poi 3.2 SecurityException HPSFException signer information does not match signer information of other classes in the same package

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。