Java xml创建报错
Document doc = DocumentHelper.createDocument();
Element root = doc.addElement("users");
XMLWriter xw = null;
try {
xw = new XMLWriter(new FileOutputStream(new File(
"d:\\xml\\Calendar_index.xml")));
} catch (UnsupportedEncodingException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} catch (FileNotFoundException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
try {
xw.write(doc);
xw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
报错:
java.io.FileNotFoundException: d:\xml\Calendar_index.xml (系统找不到指定的路径。)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:179)
at java.io.FileOutputStream.<init>(FileOutputStream.java:131)
at example.Calendar_index.create_xml(Calendar_index.java:106)
at example.Calendar_index.init(Calendar_index.java:133)
at example.Calendar_index.<init>(Calendar_index.java:91)
at example.Calendar_index.main(Calendar_index.java:389)
Exception in thread "main" java.lang.NullPointerException
at example.Calendar_index.create_xml(Calendar_index.java:115)
at example.Calendar_index.init(Calendar_index.java:133)
at example.Calendar_index.<init>(Calendar_index.java:91)
at example.Calendar_index.main(Calendar_index.java:389)