标签：java service flag SQLException user import 狂神 null conn
接口
package service.LogService.RoleService;
import po.role;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.List;
public interface RoleList {
public List<role> RoleListService() throws SQLException, ClassNotFoundException;
}
package service.LogService;
import po.user;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.Date;
import java.util.List;
public interface LoginService {
//登入接口
public user Login(String User,String pwd) throws SQLException, ClassNotFoundException;
//修改密码接口
public boolean UppwdService(int id,String pwd) throws SQLException, ClassNotFoundException;
//获取人员数量
public int CountService(String Username,int id) throws SQLException, ClassNotFoundException;
//获取人员信息
public List <user> UserList(String UserName, int id,int a,int b) throws SQLException, ClassNotFoundException;
//添加用户
public boolean adduser(user user) throws SQLException, ClassNotFoundException;
//查询用户是否存在
public boolean exuser(String user);
//删除用户
public boolean deluser(int id);
//根据ID查询用户
public user selectuser(int id);
//更新用户信息
public Boolean UPuser(user user);
}
实现类
package service.LogService.RoleService;
import dao.BaseDao;
import dao.Role.RoleListimpl;
import po.role;
import service.LogService.RoleService.RoleList;
import java.sql.Connection;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;
public class RoleListServiceimpl implements RoleList {
public List<role> RoleListService() {
Connection conn = null;
try {
conn = BaseDao.GetConn();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
RoleListimpl roleListimpl = new RoleListimpl();
List<role> roles = null;
try {
roles = roleListimpl.SelectRole(conn);
} catch (SQLException e) {
e.printStackTrace();
}
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn,null,null);
return roles;
}
}
package service.LogService;
import com.mysql.jdbc.StringUtils;
import dao.BaseDao;
import dao.LoginDao.LoginDao;
import dao.LoginDao.LoginDaoImpl;
import po.user;
import java.sql.Connection;
import java.sql.SQLException;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Date;
import java.util.List;
//登入service
public class LoginServiceImpl implements LoginService {
LoginDao loginDao;
public LoginServiceImpl() {
loginDao = new LoginDaoImpl();
}
//登入
public user Login(String User, String pwd) throws SQLException, ClassNotFoundException {
Connection conn = BaseDao.GetConn();
user user1 = null;
user1 = loginDao.LoginUser(conn, User);
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn, null, null);
return user1;
}
//修改service
public boolean UppwdService(int id, String pwd) throws SQLException, ClassNotFoundException {
Connection conn = null;
boolean flag;
int i = 0;
if (pwd != null) {
conn = BaseDao.GetConn();
i = loginDao.UpPwd(conn, id, pwd);
}
if (i != 0) {
flag = true;
} else {
flag = false;
}
return flag;
}
//通过组或用户名获取数量
public int CountService(String Username, int id) throws SQLException, ClassNotFoundException {
Connection conn = null;
conn = BaseDao.GetConn();
int count = loginDao.CountName(conn, Username, id);
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn, null, null);
return count;
}
//获取用户列表
public List<user> UserList(String UserName, int id, int a, int b) throws SQLException, ClassNotFoundException {
Connection conn = null;
conn = BaseDao.GetConn();
ArrayList<user> UserList = new ArrayList<user>();
UserList = (ArrayList<user>) loginDao.UerList(conn, UserName, id, a, b);
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn, null, null);
return UserList;
}
//添加用户
public boolean adduser(user user) throws SQLException {
boolean flag = false;
Connection conn = null;
if (user != null) {
if (StringUtils.isNullOrEmpty(user.getUserPassword())) {
flag = false;
}
if (StringUtils.isNullOrEmpty(user.getUserCode())) {
flag = false;
}
if (StringUtils.isNullOrEmpty(user.getUserRole())) {
flag = false;
};
try {
conn = BaseDao.GetConn();
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
try {
conn.setAutoCommit(false);
flag= loginDao.adduser(conn,user);
conn.commit();
conn.setAutoCommit(true);
} catch (SQLException e) {
conn.rollback();
e.printStackTrace();
flag=false;
}finally {
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn,null,null);
}
}
return flag;
}
//查询用户是否存在
public boolean exuser(String user) {
boolean flag=false;
int a=0;
Connection conn=null;
try {
conn = BaseDao.GetConn();
a= loginDao.ecuser(conn,user);
if(a>0){
flag=false;
}else{
flag=true;
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return flag;
}
//删除用户
public boolean deluser(int id) {
boolean flag=false;
Connection conn=null;
int a=0;
try {
conn=BaseDao.GetConn();
a = loginDao.deluser(conn,id);
if(a>0){
flag = true;
}else{
flag=false;
}
} catch (ClassNotFoundException e) {
e.printStackTrace();
flag=false;
} catch (SQLException e) {
e.printStackTrace();
}finally {
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn,null,null);
}
return flag;
}
//根据用户查询ID；
public user selectuser(int id) {
user user = new user();
user =null;
Connection conn=null;
try {
conn = BaseDao.GetConn();
user= loginDao.selectuser(conn,id);
} catch (ClassNotFoundException e) {
e.printStackTrace();
} catch (SQLException e) {
e.printStackTrace();
}
return user;
}
//更新用户信息
public Boolean UPuser(user user) {
boolean flag = false;
Connection conn=null;
int updatauser = 0;
try {
conn =BaseDao.GetConn();
conn.setAutoCommit(false);
updatauser = loginDao.updatauser(conn, user);
conn.commit();
conn.setAutoCommit(true);
if(updatauser!=0){
flag = true;
}else{
flag = false;
}
} catch (ClassNotFoundException e) {
try {
conn.rollback();
} catch (SQLException ex) {
ex.printStackTrace();
}
e.printStackTrace();
flag = false;
} catch (SQLException e) {
try {
conn.rollback();
flag = false;
} catch (SQLException ex) {
ex.printStackTrace();
flag = false;
}
e.printStackTrace();
flag = false;
}finally {
BaseDao.ConnClose((com.mysql.jdbc.Connection) conn,null,null);
}
return flag;
}
}
标签：java,service,flag,SQLException,user,import,狂神,null,conn 来源： https://www.cnblogs.com/en112300/p/15369071.html
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