@Override
public List<User> findByUIDs(int[] uidArray) throws Exception {
// TODO Auto-generated method stub
// 连接数据库
DatabaseConnection dbc = new DatabaseConnection();
Connection conn = dbc.getConnection();
PreparedStatement pStatement = null;
// 声明变量用于存取结果
List<User> userList = new LinkedList<User>();
// 搜索语句
String query = "select * from user where uid = ?";
try {
// 执行搜索
pStatement = conn.prepareStatement(query);
for (int i = 0; i < uidArray.length; i++) {
pStatement.setInt(1, uidArray[i]);
ResultSet rs = pStatement.executeQuery();
while (rs.next()) {
User user = new User();
user.setMBID(rs.getInt("MBID"));
user.setFullName(rs.getString("FullName"));
user.setAvatarUrl(rs.getString("AvatarUrl"));
user.setEmail(rs.getString("Email"));
user.setPassWord(rs.getString("PassWord"));
user.setUID(rs.getInt("UID"));
userList.add(user);
}
}
// 判断是否为空
if (userList.size() != 0) {
System.out.println("Successful!");
} else {
System.out.println("No record satisfied!");
userList = null;
}
// 关闭连接，返回结果
// rs.close();
dbc.close();
return userList;
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
@Override
public List<User> findByUserName(String userName) throws Exception {
// TODO Auto-generated method stub
// 连接数据库
DatabaseConnection dbc = new DatabaseConnection();
Connection conn = dbc.getConnection();
PreparedStatement pStatement = null;
// 声明变量用于存取结果
List<User> userList = new LinkedList<User>();
// 搜索语句
String query = "SELECT * FROM user WHERE Fullname LIKE '%" + userName + "%'";
try {
// 执行搜索
pStatement = conn.prepareStatement(query);
// pStatement.setString(1, userName);
ResultSet rs = pStatement.executeQuery();
while (rs.next()) {
User user = new User();
user.setMBID(rs.getInt("MBID"));
user.setFullName(rs.getString("FullName"));
user.setAvatarUrl(rs.getString("AvatarUrl"));
user.setEmail(rs.getString("Email"));
user.setPassWord(rs.getString("PassWord"));
user.setUID(rs.getInt("UID"));
userList.add(user);
}
// 判断是否为空
if (userList.size() != 0) {
System.out.println("findByUserName Successful!");
} else {
System.out.println("findByUserName No record satisfied!");
userList = null;
}
// 关闭连接，返回结果
// rs.close();
dbc.close();
return userList;
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
@Override
public User signin(String email, String password) throws Exception {
// TODO Auto-generated method stub
// 连接数据库
DatabaseConnection dbc = new DatabaseConnection();
Connection conn = dbc.getConnection();
PreparedStatement pStatement = null;
// 声明变量用于存取结果
User user = new User();
// 搜索语句
String query = "select * from user where email= ? and password= ?";
try {
// 执行搜索
pStatement = conn.prepareStatement(query);
pStatement.setString(1, email);
pStatement.setString(2, password);
ResultSet rs = pStatement.executeQuery();
while (rs.next()) {
user.setMBID(rs.getInt("MBID"));
user.setFullName(rs.getString("FullName"));
user.setAvatarUrl(rs.getString("AvatarUrl"));
user.setEmail(rs.getString("Email"));
user.setPassWord(rs.getString("PassWord"));
user.setUID(rs.getInt("UID"));
}
// 判断是否为空
if (user.getUID() != 0) {
System.out.println("Signin Successfully!");
} else {
System.out.println("Signin Faild!");
user = null;
}
// 关闭连接，返回结果
// rs.close();
dbc.close();
return user;
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
@Override
public User findByUID(int uid) throws Exception {
// TODO Auto-generated method stub
// 连接数据库
DatabaseConnection dbc = new DatabaseConnection();
Connection conn = dbc.getConnection();
PreparedStatement pStatement = null;
// 声明变量用于存取结果
User user = new User();
// 搜索语句
String query = "select * from user where uid=" + uid;
try {
// 执行搜索
pStatement = conn.prepareStatement(query);
ResultSet rs = pStatement.executeQuery();
while (rs.next()) {
user.setMBID(rs.getInt("MBID"));
user.setFullName(rs.getString("FullName"));
user.setAvatarUrl(rs.getString("AvatarUrl"));
user.setEmail(rs.getString("Email"));
user.setPassWord(rs.getString("PassWord"));
user.setUID(rs.getInt("UID"));
}
// 判断是否为空
if (user.getFullName() != null) {
System.out.println("findByUID Successful!");
} else {
System.out.println("findByUID No record satisfied!");
user = null;
}
// 关闭连接，返回结果
// rs.close();
dbc.close();
return user;
} catch (SQLException e) {
e.printStackTrace();
}
return null;
}
@Override
public User signup(String email, String password, String fullName, String avatarUrl)
throws Exception {
// TODO Auto-generated method stub
// 连接数据库
DatabaseConnection dbc = new DatabaseConnection();
Connection conn = dbc.getConnection();
PreparedStatement pStatement = null;
// 结果
User user = new User();
// 搜索语句
String query =
"INSERT INTO user (UID, Email, Password, Fullname, AvatarURL, MBID) "
+ "VALUES (NULL, ?, ?, ?, ?, ?)";
String result = "select * from user where email=?";
if (isUserExisted(email)) {
return null;
} else {
try {
// 新建MsgBoard给新用户
MsgBoardDAOImpl mdi = new MsgBoardDAOImpl();
MsgBoard msgBoard = mdi.createMsgBoard();
// 执行插入
pStatement = conn.prepareStatement(query);
pStatement.setString(1, email);
pStatement.setString(2, password);
pStatement.setString(3, fullName);
pStatement.setString(4, avatarUrl);
pStatement.setInt(5, msgBoard.getMBID());
int row = pStatement.executeUpdate();
// 判断是否为空
if (row > 0) {
// 若不为空，返回刚插入的对象
System.out.println("Signup Successful!");
pStatement = conn.prepareStatement(result);
pStatement.setString(1, email);
ResultSet rs = pStatement.executeQuery();
if (rs.next()) {
user.setMBID(rs.getInt("MBID"));
user.setFullName(rs.getString("FullName"));
user.setAvatarUrl(rs.getString("AvatarUrl"));
user.setEmail(rs.getString("Email"));
user.setPassWord(rs.getString("PassWord"));
user.setUID(rs.getInt("UID"));
}
} else {
System.out.println("Signup faild!");
user = null;
}
// 关闭连接，返回结果
// rs.close();
dbc.close();
return user;
} catch (SQLException e) {
e.printStackTrace();
}
}
return null;
}