当用户输入教师姓名时,我需要搜索教师姓名并显示有关它的所有信息
我已经编写了这段代码,但它给了我运行时错误,这个错误是:FATAL EXCEPTION: main
这是 GetRecord 方法
public Cursor getRecord(String n1) throws SQLException
{
Cursor mCursor =db.query(true, databaseName, new String[] {facultyc,
deparmentc, namec, officeNumberc,Phonec ,emailAddressc,officeHourc},namec + "=" + n1, null, null, null, null, null);
if (mCursor != null) {
mCursor.moveToFirst();
}
return mCursor;
}
和这个搜索方法,当用户点击搜索按钮时它的表现
public void search(){
db.open();
Cursor c = db.getRecord(n);
if (c.moveToFirst()){
t1.setText(c.getString(0));
t2.setText(c.getString(1));
t3.setText(c.getString(2));
t4.setText(c.getString(3));
t5.setText(c.getString(4));
t6.setText(c.getString(5));
t7.setText(c.getString(6));
}
else
Toast.makeText(this, "this Dr not found", Toast.LENGTH_LONG).show();
db.close();
}
出现这个错误
05-04 13:39:52.856: E/Trace(4001): 打开跟踪文件时出错: 没有这样的文件或目录 (2)