java - java.sql.SQLException：对空结果集的非法操作

Question

public DialogTambah(JFrame parent, String ACTION, String NAMA) throws Exception {

    super((Frame)null,"" , true);        
    initComponents();       

    AKSI_SELANJUTNYA = ACTION;
    sId = "";
    sUserid = "";
    sPwd = "";
    sNama = "";
    sPhoneNo = "";
    sAddress = "";
    sEmail = "";
    sCrnumber = "";
    tgl="";
    if (AKSI_SELANJUTNYA == "Form Ubah") {

        try {
            Statement Update_st = DBConn.conn.createStatement();
            String SQLEdit = "select * from content where name = '" + NAMA + "' ";
            ResultSet rs = Update_st.executeQuery(SQLEdit);
            rs.next();

---

java.sql.SQLException：对空结果集的非法操作。

无效的

myqstn 为什么总是得到空结果？我检查过，没有错误。

Answer 1

我猜"select * from content where name = '" + NAMA + "' ";不返回任何行....

异常发生在哪一行？