Java 从数据库中获取日期值，然后设置为字符串

如何从数据库中获取日期值，然后将其设置为字符串。有人能告诉我为什么下面的代码不能正常工作吗？这是给人带来麻烦的部分：

// Date d = rs.getDate("PatientBirthDate");

// DateFormat df = new SimpleDateFormat("MM/dd/yyyy");
// String date = df.format(d);

while (rs.next()) {
    pid.setText(String.valueOf(rs.getInt("PatientID")));
    ssn.setText(rs.getString("PatientSSN"));
    firstname.setText(rs.getString("PatientFname"));
    lastname.setText(rs.getString("PatientLname"));
    gender.setText(rs.getString("PatientGender"));
    // dob.setText(date);
    streetnum.setText(rs.getString("PatientStreetNo"));
    streetname.setText(rs.getString("PatientStreetName"));
    city.setText(rs.getString("PatientCity"));
    state.setText(rs.getString("PatientState"));
    zip.setText(rs.getString("PatientZip"));
    homephone.setText(rs.getString("PatientHomePhone"));
    cellphone.setText(rs.getString("PatientCellPhone"));
    email.setText(rs.getString("PatientEmailAddress"));
    inspolicy.setText(rs.getString("InsurancePolicyNumber"));
    inscompany.setText(String.valueOf(rs.getInt("InsuranceCompID")));
}

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你为什么在循环之外阅读日期

DateFormat df = new SimpleDateFormat("MM/dd/yyyy");    
while (rs.next()) {
        pid.setText(String.valueOf(rs.getInt("PatientID")));
        ssn.setText(rs.getString("PatientSSN"));
        firstname.setText(rs.getString("PatientFname"));
        lastname.setText(rs.getString("PatientLname"));
        gender.setText(rs.getString("PatientGender"));
        Date d = rs.getDate("PatientBirthDate");
        String date = df.format(d);
        dob.setText(date);
        streetnum.setText(rs.getString("PatientStreetNo"));
        streetname.setText(rs.getString("PatientStreetName"));
        city.setText(rs.getString("PatientCity"));
        state.setText(rs.getString("PatientState"));
        zip.setText(rs.getString("PatientZip"));
        homephone.setText(rs.getString("PatientHomePhone"));
        cellphone.setText(rs.getString("PatientCellPhone"));
        email.setText(rs.getString("PatientEmailAddress"));
        inspolicy.setText(rs.getString("InsurancePolicyNumber"));
        inscompany.setText(String.valueOf(rs.getInt("InsuranceCompID")));
    }

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您是否遇到任何异常、编译错误等。问题是什么？什么是“工作不正常”？

date

是有效的日期/时间列还是文本列？你能从数据库中获取

java.sql.Date

或

java.sql.Timestamp

值吗？你得到了什么错误？我希望你调用的是

rs.getDate（“PatientBirthDate”）在
while（rs.next）
循环中…需要代码听起来很糟糕！