如何在 jLabel 中应用新行？
[英]How can I apply new line in jLabel?
问题描述
I want to display values from database in many lines using jLabel.
我想使用 jLabel 在多行中显示数据库中的值。 I tried using the html trick but I don't know how to apply it here in my code.我尝试使用 html 技巧，但我不知道如何在我的代码中应用它。 I just get errors.我只是得到错误。 Maybe I'm doing it the wrong way.也许我做错了。 Haha.哈哈。
try{
//display doctor's name by selected classification
String url = "jdbc:mysql://localhost/sched";
Connection conn = DriverManager.getConnection(url,"root","");
Statement stmt = conn.createStatement();
String classification = comboClass.getSelectedItem().toString();
String sqlSelect= "select * from doctorsched where class = '"+classification+"'";
ResultSet rs = stmt.executeQuery(sqlSelect);
String finalText ="";
while(rs.next()){
String docsName= rs.getString("docName");
String room = rs.getString("room");
String days = rs.getString("day");
String from = rs.getString("timefrom");
String to = rs.getString("timeto");
finalText += docsName+" (room "+room+", "+days+", "+from+"-"+to+") \\n";
// i want to display values from database in many lines but using jLabel
}
jLabel10.setText(finalText);
} catch (Exception ex) {
Logger.getLogger(home.class.getName()).log(Level.SEVERE, null, ex);
}
Something like this should be my output像这样的应该是我的 output
doc riza (room 104, Every Thursday, 10:30AM-10:00AM)
doc j (room 101, null, 10:30AM-11:30AM)
doc lea (room 102, Every Saturday, 10:30AM-4:30PM)
frida (room 101, null, 8:00AM-9:30AM)
Please help me out:( The '\n' works in jTextArea but not in jLabel. I also tried '\n' in label, but doesn't work, too.请帮帮我:( '\n' 在 jTextArea 中有效，但在 jLabel 中无效。我也在 label 中尝试了 '\n'，但也不起作用。
Okay so I tried this one好吧，我试过这个
finalText += "<html>"+docsName+" (room "+room+", "+days+", "+from+"-"+to+")<br></html>";
But this code only display one line.但是这段代码只显示一行。 The first row in my database.我数据库中的第一行。 I need to display all of the rows.我需要显示所有行。
Now, this next code shows it all, but the next line still doesn't work.现在，下一段代码显示了所有内容，但下一行仍然不起作用。
while(rs.next()){
String docsName= rs.getString("docName");
String room = rs.getString("room");
String days = rs.getString("day");
String from = rs.getString("timefrom");
String to = rs.getString("timeto");
finalText += docsName+" (room "+room+", "+days+", "+from+"-"+to+")\n";
}
jLabel10.setText("<html>"+finalText+"<br></html>");
}
Whyyy为什么啊
2 个解决方案
解决方案1
0 2020-11-14 10:13:51
use a code like this使用这样的代码
String finalText = "";
for (int i = 0; i < 10; i++) {
finalText += "line:" + i;
finalText += "<br>";
}
label.setText("<html>" + finalText + "</html>");
解决方案2
0 已采纳 2020-11-14 10:43:37
try{
//display doctor's name by selected classification
String url = "jdbc:mysql://localhost/sched";
Connection conn = DriverManager.getConnection(url,"root","");
Statement stmt = conn.createStatement();
String classification = comboClass.getSelectedItem().toString();
String sqlSelect= "select * from doctorsched where class = '"+classification+"'";
ResultSet rs = stmt.executeQuery(sqlSelect);
String finalText ="";
while(rs.next()){
String docsName= rs.getString("docName");
String room = rs.getString("room");
String days = rs.getString("day");
String from = rs.getString("timefrom");
String to = rs.getString("timeto");
finalText += (docsName+" (room "+room+", "+days+", "+from+"-"+to+")\n") ;
finalText += "<br>";
}
jLabel10.setText("<html>" + finalText + "</html>");
} catch (Exception ex) {
Logger.getLogger(home.class.getName()).log(Level.SEVERE, null, ex);
}
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