简单的员工信息管理系统源码
据库连接3.查询4.增、5删6改(操作数据库）
import .*;
import .*;
import .*;
import .*;
public class EmpManageSys implements ActionListener { Connection con;
Statement stmt;
String sql;
ResultSet rs;
StringBuffer sb = new StringBuffer();
JTextField jtf2 = new JTextField("张飞",10);
JTextField jtf3 = new JTextField(10);
JTextField jtf4 = new JTextField(10);
JTextField jtf7 = new JTextField(10);
JTextField jtf5 = new JTextField(10);
JTextField jtf6 = new JTextField(10);
JTextField jtf8 = new JTextField(10);
JTextField jtf9 = new JTextField(10);
JTextArea jta10 = new JTextArea(50, 40);
public void actionPerformed(ActionEvent e) {
String str = ();
if ("查询".equals(str)) {
quals(str)) {
quals(str)) {
quals(str)) {
EmpManageSys() {
createGUI();
connectToDataBase();
public Connection connectToDataBase() { con = ();
(con);
return con;
}
public void searchEmp() {
("");
try {
stmt = ();
oLowerCase().trim() + "or id="
+ ().toLowerCase().trim() + "or engName=" + ().toLowerCase().trim() + "or UNIT="
+ ().toLowerCase().trim() + "or TEAM="
+ ().toLowerCase().trim() + "or Phone="
+ ().toLowerCase().trim() + "or region="
+ ().toLowerCase().trim() + "or busStation=" + ().toLowerCase().trim();
(sql);
rs = ();
ResultSetMetaData meta = ();
int cols = ();
while ()) {
for (int i = 1; i <= cols; i++) {
(" " + (i) + " =");
(i));
}
("\n");
());
}
} catch (SQLException e11) {
();
}
}
public void addEmp() {
try {
stmt = ();
sql = "update Mstar values(" + () + ()
+ () + () + ()
+ () + () + () + ")";
int i = ();
if (() != null) && () != null)
&& () != null) && () != null)) {
(sql);
("添加记录成功" + i + "条");
} else {
("带*号项为添加记录时不能为空");
}
} catch (SQLException e1) {
();
}
}
public void deleteEmp() {
searchEmp();
try {
stmt = ();
sql = "delete from Mstar where chineseName=" + ().toLowerCase().trim() + "or id="
+ ().toLowerCase().trim() + "or engName="
+ ().toLowerCase().trim() + "or UNIT="
+ ().toLowerCase().trim() + "or TEAM="
+ ().toLowerCase().trim() + "or Phone="
+ ().toLowerCase().trim() + "or region="
+ ().toLowerCase().trim() + "or busStation=" + ().toLowerCase().trim();
(sql);
int i = ();
("撤除操作成功" + i + "条");
} catch (SQLException e) {
();
}
}
public void alterEmp() {
searchEmp();
sql = "update Mstar set chineseName="
+ ().toLowerCase().trim() + "and id="
+ ().toLowerCase().trim() + "and engName=" + ().toLowerCase().trim() + "and UNIT="
+ ().toLowerCase().trim() + "and TEAM="
+ ().toLowerCase().trim() + "and Phone="
+ ().toLowerCase().trim() + "and region="
+ ().toLowerCase().trim() + "and busStation="
+ ().toLowerCase().trim();
int i = 0;
try {
(sql);
i = ();
} catch (SQLException e) {
();
}
("修改操作成功" + i + "条");
}
public void createGUI() {
JFrame jf = new JFrame("员工信息管理系统"); (new GridLayout(2, 1));
;
public class JdbcUtil
{
//load driver from file
static{
try{
String driverName =
"";
(driverName);
}catch(Exception e){
();
}
}
//establish connection
public static Connection getConnection(){
Connection con = null;
try{
String url =
"jdbc:oracle:thin
String usr = "openlab";
String pwd = "open123";
con = (
url,usr,pwd);
}catch(Exception e){
();
}
return con;
}
//close resultSet,statement and connection
public static void close(ResultSet rs,Statement stmt,Connection con){
try{
if(rs!=null) ();
}catch(Exception ex){ ();
}
try{
if(stmt!=null) ();
}catch(Exception ex){ ();
}
try{
if(con!=null) ();
}catch(Exception ex){ ();
}
}
}