我正在尝试通过App Engine和Jaunt提交表单。我收到此错误:
java.lang.NullPointerException
at com.jaunt.UserAgent.a(SourceFile:2337)
at com.jaunt.UserAgent.send(SourceFile:887)
at com.jaunt.component.Form.submit(SourceFile:1263)
at ewohnat.server.parse.MyServlet.doJaunt(MyServlet.java:118)
当我尝试运行此代码时:
UserAgent userAgent = new UserAgent();
userAgent.visit("www.someurl.com");
Form form = userAgent.doc.forms[0];
form.setCheckBox("cb", true);
form.submit();
异常在最后一行引发。有什么想法吗?
form.submit();
无法正常工作。改用带参数的方法
form.submit(String value);