我有一个名为Patientlist的文本文件,看起来像:
george 19 180 75
paul 20 182 84
laura 21 176 73
我想做的是读取此文件并将行添加到mysql数据库的表中。我已经编写了这段读取文件的代码:
public static void patients() throws IOException{
try {
in= new BufferedReader(new FileReader(new File("patientlist.txt")));
}
catch (FileNotFoundException e) {System.out.println("There was a problem: " + e);}
while((read = in.readLine()) != null){
System.out.println(read);
}
}
“读取”是文件中的值。我想将这些值插入到数据库中的表中,该表的参数(名称,年龄,身高,体重)为每行4个值。我找不到如何分隔一行上的值。因为我想让George,Paul和Laura在数据库等的名称下,所以我将来可以使用select吗?谢谢您的帮助!
我已经写了一些这样的代码,您可以检查一下吗?
public static void main(String[] args) throws IOException {
PreparedStatement preparedstatement = null;
Connection connection = DBConnection();
try{
String read=null;
in = new BufferedReader(new FileReader("patientlist.txt"));
while ((read = in.readLine()) != null) {
String[] splited = read.split("\\s+");
name = splited[0];
age = splited[1];
height = splited[2];
weight = splited[3];
}
}
catch (IOException e) {System.out.println("There was a problem: " + e);}
try {
addpatient(connection, preparedstatement, name, age, height, weight);
if (connection != null)
try{connection.close();} catch(SQLException ignore){}
}
catch (SQLException error) {System.out.println(error);}
}
public static void addpatient(Connection connection, PreparedStatement preparedstatement, String name, String age, String height, String weight) throws SQLException{
preparedstatement=connection.prepareStatement("insert into allpatients(name, age, height, weight) values(?,?,?,?)");
preparedstatement.setString(1, name);
preparedstatement.setString(2, age);
preparedstatement.setString(3, height);
preparedstatement.setString(4, weight);
preparedstatement.executeUpdate();
}
连接连接= DBConnection();行创建了与数据库的连接,该数据库具有另一个我在这里没有写的方法。我认为问题出在我的while循环上,我想我也应该放入for循环,但是我的编程不是很好,请帮忙,谢谢。
最佳答案
你可以做
read.split("\\s+");
或者,如果您的值用
tab
分隔,read.split("\t");
使用此代码:
String s = "george 19 180 75";
String[]split = s.split("\\s+");
for (int i = 0; i < split.length; i++) {
System.out.println(split[i]);
}
输出为:
george
19
180
75