databaseservice.java

JGraph扩展应用。自定义Renderer,自定义视图View实现自定义工作流控件

/**
 * 
 */
package flow.graph.db.bean;

import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import flow.graph.db.SQLiteConnection;
import flow.graph.util.Encoder;

/**
 * @author Administrator
 *
 */
public class DataBaseService {	
	public static List selectService(Connection con) throws SQLException {
		//log.info("CardUserRequest.checkUser;phone="+phone);
		PreparedStatement stmt = null;
		ResultSet rest = null;
		List list = new ArrayList();
		String sql = "select * from service order by t_id asc";
		try{
			stmt = con.prepareStatement(sql);
			rest = stmt.executeQuery();
			while(rest.next()){
				ServiceBean service = new ServiceBean();
				service.setT_id(rest.getInt("t_id"));
				service.setT_name(rest.getString("t_name"));
				list.add(service);
			}
			return list;
		} catch (SQLException e){
			throw e;
		}
		finally{
			try {
				if(rest != null)
					rest.close();
				if(stmt != null)
					stmt.close();
				if(con != null)
					con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				throw e;
			}
		}
	}

	public static ServiceBean selectServiceIdByName(Connection con, String s) {
		PreparedStatement stmt = null;
		ResultSet rest = null;
		String sql = "select * from service where t_name = ? order by t_id desc limit 0, 1";
		try{
			stmt = con.prepareStatement(sql);
			stmt.setString(1, s);
			rest = stmt.executeQuery();
			if(rest.next()){
				ServiceBean service = new ServiceBean();
				service.setT_id(rest.getInt("t_id"));
				service.setT_name(rest.getString("t_name"));
				return service;
			}
			return null;
		} catch (SQLException e){
			System.out.println(e.getMessage());
			return null;
		}
		finally{
			try {
				if(rest != null)
					rest.close();
				if(stmt != null)
					stmt.close();
				if(con != null)
					con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
	}

	public static ServiceBean insertService(Connection con, String name) throws SQLException {
		PreparedStatement stmt = null;
		ResultSet rest = null;
		String sql = "insert into service(t_name) values(?)";
		try{
			stmt = con.prepareStatement(sql);
			stmt.setString(1, name);
			if(stmt.executeUpdate() > 0){
				sql = "select * from service order by t_id desc limit 0, 1";
				stmt = con.prepareStatement(sql);
				rest = stmt.executeQuery();
				if(rest.next()){
					ServiceBean bean = new ServiceBean();
					bean.setT_id(rest.getInt("t_id"));
					bean.setT_name(rest.getString("t_name"));
					bean.setT_enterid(rest.getInt("t_enterid"));
					return bean;
				}
				else{
					throw new SQLException("DataBaseService:insertService-->get t_id failed!");
				}
			}
			else
				throw new SQLException("DataBaseService:insertService execute failed!");
			
		} catch (SQLException e){
			throw e;
		}
		finally{
			try {
				if(rest != null)
					rest.close();
				if(stmt != null)
					stmt.close();
				if(con != null)
					con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				throw e;
			}
		}
	}
	
	public static int updateServiceEnterID(Connection con, ServiceBean bean) {
		PreparedStatement stmt = null;
		ResultSet rest = null;
		String sql = "update service set t_enterid = ? where t_id = ?";
		try{
			stmt = con.prepareStatement(sql);
			stmt.setInt(1, bean.getT_enterid());
			stmt.setInt(2, bean.getT_id());
			return stmt.executeUpdate();
		} catch (SQLException e){
			System.out.println(e.getMessage());
		}
		finally{
			try {
				if(rest != null)
					rest.close();
				if(stmt != null)
					stmt.close();
				if(con != null)
					con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				e.printStackTrace();
			}
		}
		return 0;
	}
	
	public static int updateService(Connection con, ServiceBean bean) throws SQLException {
		PreparedStatement stmt = null;
		ResultSet rest = null;
		String sql = "update service set t_name = ? where t_id = ?";
		try{
			stmt = con.prepareStatement(sql);
			stmt.setString(1, bean.getT_name());
			stmt.setInt(2, bean.getT_id());
			return stmt.executeUpdate();
		} catch (SQLException e){
			throw e;
		}
		finally{
			try {
				if(rest != null)
					rest.close();
				if(stmt != null)
					stmt.close();
				if(con != null)
					con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				throw e;
			}
		}
	}
	
	public static int deleteService(Connection con, int id) throws SQLException {
		//删除业务节点，同时删除该业务下的所有节点
		PreparedStatement stmt = null;
		ResultSet rest = null;
		String sql = "delete from service where t_id = ?";
		try{
			stmt = con.prepareStatement(sql);
			stmt.setInt(1, id);
			return stmt.executeUpdate();
		} catch (SQLException e){
			throw e;
		}
		finally{
			try {
				if(rest != null)
					rest.close();
				if(stmt != null)
					stmt.close();
				if(con != null)
					con.close();
			} catch (SQLException e) {
				// TODO Auto-generated catch block
				throw e;
			}
		}
	}
}