class="java">package com.pro.lottery.util; import java.lang.reflect.Field; import java.sql.CallableStatement; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; import java.sql.Statement; import java.util.ArrayList; import java.util.List; import org.apache.commons.dbcp.BasicDataSource; import org.apache.commons.dbcp.DataSourceConnectionFactory; import com.pro.lottery.modle.UserTable; /*** * @description: 数据库连接池配置及存储过程调用 * @author Caixu * @dateTime 2014-11-27 * */ public class DataSourceFactory { private static BasicDataSource dbcp; private static DataSourceConnectionFactory dscf; String className = "com.microsoft.sqlserver.jdbc.SQLServerDriver"; String url = "jdbc:sqlserver://localhost:1433;database=PEpos"; String userName = "sa"; String password = "woaixua52110"; /* * String className = "oracle.jdbc.driver.OracleDriver"; String url = * "jdbc:oracle:thin:@172.27.35.2:1521:orcl"; String userName = "scott"; * String password = "tiger"; */ private DataSourceFactory() { dbcp = new BasicDataSource(); dbcp.setDriverClassName(className); dbcp.setUrl(url); dbcp.setUsername(userName); dbcp.setPassword(password); // 最大获取连接数 dbcp.setMaxActive(100); // 最大可用空闲连接数 dbcp.setMaxIdle(10); dbcp.setMaxWait(6000); dscf = new DataSourceConnectionFactory(dbcp); } private static DataSourceFactory Pool; public synchronized static DataSourceFactory getPool() { if (Pool == null) { Pool = new DataSourceFactory(); } return Pool; } public Connection getConnection() { Connection con = null; try { con = dscf.createConnection(); } catch (Exception e) { e.printStackTrace(); } return con; } /** * 调用存储过程执行 insert update delete操作 * * @param procedureName * 存储过程名 * @param obj * 存储过程参数 * @return */ public static int update(String procedureName, Object[] obj) { Connection connection = null; CallableStatement cstmt = null; try { DataSourceFactory pool = DataSourceFactory.getPool(); connection = pool.getConnection(); // 得到拼接的存储和参数 String proStr = getProcedureStr(procedureName, obj); cstmt = connection.prepareCall(proStr); for (int i = 0; i < obj.length; i++) { cstmt.setObject(i + 1, obj[i]); } cstmt.execute(); int count = cstmt.getUpdateCount(); return count; } catch (Exception e) { e.printStackTrace(); return -1; } finally { close(connection, cstmt, null); } } /*public static int batchUpdateByProcedure(String[] procedureNames, List<Object[]> objs){ Connection connection = null; CallableStatement cstmt = null; try { if(procedureNames.length != objs.size()){ return -1; } DataSourceFactory pool = DataSourceFactory.getPool(); connection = pool.getConnection(); // 得到拼接的存储和参数 String proStr = getProcedureStr(procedureName, obj); cstmt = connection.prepareCall(proStr); for (int i = 0; i < obj.length; i++) { cstmt.setObject(i + 1, obj[i]); } cstmt.execute(); int count = cstmt.getUpdateCount(); return count; } catch (Exception e) { e.printStackTrace(); return -1; } } */ /** * sql语句的批处理 * * @param sqlArray * @return */ public static int batchUpdateBySql(String[] sqlArray) { Connection connection = null; Statement st = null; try { DataSourceFactory pool = DataSourceFactory.getPool(); connection = pool.getConnection(); st = connection.createStatement(); for (String sql : sqlArray) { st.addBatch(sql); } } catch (Exception e) { e.printStackTrace(); return -1; } // 取消自动提交 try { //是否回滚 boolean flag = false; connection.setAutoCommit(false); int[] count = st.executeBatch(); int resCount = 0; for (int i : count) { resCount = resCount + i; if(i == 0){ flag = true; resCount = 0; break; } } //如果有一个失败 则回滚 if(flag){ connection.rollback(); } connection.commit(); return resCount; } catch (Exception e) { e.printStackTrace(); // 如果出错了,则应该把数据回滚 try { connection.rollback(); } catch (SQLException e1) { e1.printStackTrace(); } return -1; }finally { close(connection, st, null); } } /** * 拼接程储过程 * * @param procedureName * @param obj * @return */ public static String getProcedureStr(String procedureName, Object[] obj) { StringBuffer proStr = new StringBuffer(); proStr.append("{call " + procedureName + "("); for (Object objStr : obj) { proStr.append("?").append(","); } String temp = ""; if (obj.length == 0) { temp = proStr.toString(); } else { temp = proStr.substring(0, proStr.length() - 1); } temp = temp + ")}"; return temp; } /** * 查询行记录 * * @param sql * @return */ public static long findCount(String sql) { long result = -1; Connection con = null; PreparedStatement ps = null; ResultSet rs = null; try { DataSourceFactory pool = DataSourceFactory.getPool(); con = pool.getConnection(); ps = con.prepareStatement(sql); rs = ps.executeQuery(); if (rs.next()) { result = rs.getLong(1); } } catch (Exception e) { e.printStackTrace(); } finally { close(con, ps, rs); } return result; } /** * 执行返回泛型集合的SQL语句 * * @param cls * 泛型类型 * @param sql * 查询SQL语句 * @return 泛型集合 */ public static <T> List<T> getObjListBySql(Class<T> cls, String sql) { List<T> list = new ArrayList<T>(); Connection con = null; PreparedStatement ps = null; ResultSet rs = null; try { DataSourceFactory pool = DataSourceFactory.getPool(); con = pool.getConnection(); ps = con.prepareStatement(sql); rs = ps.executeQuery(); while (rs.next()) { T obj = executeResultSet(cls, rs); list.add(obj); } } catch (Exception e) { e.printStackTrace(); } finally { close(con, ps, rs); } return list; } /** * 执行返回泛型类型对象的SQL语句 * * @param cls * 泛型类型 * @param sql * SQL语句 * @return 泛型类型对象 */ public static <T> T getObejectBySql(Class<T> cls, String sql) { T obj = null; Connection con = null; PreparedStatement ps = null; ResultSet rs = null; try { DataSourceFactory pool = DataSourceFactory.getPool(); con = pool.getConnection(); ps = con.prepareStatement(sql); rs = ps.executeQuery(); while (rs.next()) { obj = executeResultSet(cls, rs); break; } } catch (Exception e) { e.printStackTrace(); } finally { close(con, ps, rs); } return obj; } /** * 将一条记录转成一个对象 * * @param cls * 泛型类型 * @param rs * ResultSet对象 * @return 泛型类型对象 * @throws InstantiationException * @throws IllegalAccessException * @throws SQLException */ private static <T> T executeResultSet(Class<T> cls, ResultSet rs) throws InstantiationException, IllegalAccessException, SQLException { T obj = cls.newInstance(); ResultSetMetaData rsm = rs.getMetaData(); int columnCount = rsm.getColumnCount(); // Field[] fields = cls.getFields(); Field[] fields = cls.getDeclaredFields(); for (int i = 0; i < fields.length; i++) { Field field = fields[i]; String fieldName = field.getName(); String fieldType = field.getType().toString(); for (int j = 1; j <= columnCount; j++) { String columnName = rsm.getColumnName(j); if (fieldName.equalsIgnoreCase(columnName)) { Object value = rs.getObject(j); if (value == null && ("int".equals(fieldType) || "long".equals(fieldType) || "double".equals(fieldType) || "float" .equals(fieldType))) { value = 0; } field.setAccessible(true); field.set(obj, value); break; } } } return obj; } /** * 执行返回泛型集合的存储过程 * * @param procedureName * 存储过程名 * @param obj * 存储过程参数 * @return */ public static <T> List<T> getObjListByProcedure(Class<T> cls, String procedureName, Object[] object) { List<T> list = new ArrayList<T>(); Connection con = null; CallableStatement cstmt = null; ResultSet rs = null; try { DataSourceFactory pool = DataSourceFactory.getPool(); con = pool.getConnection(); // 得到拼接的存储和参数 String proStr = getProcedureStr(procedureName, object); cstmt = con.prepareCall(proStr); for (int i = 0; i < object.length; i++) { cstmt.setString(i + 1, (String) object[i]); } rs = cstmt.executeQuery(); while (rs.next()) { T obj = executeResultSet(cls, rs); list.add(obj); } return list; } catch (Exception e) { e.printStackTrace(); return null; } finally { close(con, cstmt, rs); } } /** * 关闭JDBC对象,释放资源。 * * @param con * 连接对象 * @param ps * 命令对象 * @param rs * 结果集对象 */ private static void close(Connection con, Statement ps, ResultSet rs) { try { if (rs != null) { rs.close(); rs = null; } if (ps != null) { ps.close(); ps = null; } if (con != null) { con.close(); con = null; } } catch (SQLException e) { e.printStackTrace(); } } /** * @param args */ public static void main(String[] args) { Statement sm = null; ResultSet rs = null; try { /* * DataSourceFactory pool = DataSourceFactory.getPool(); Connection * connection = pool.getConnection(); System.out.println("dfad"); sm * = connection.createStatement(); rs = * sm.executeQuery("select * from lotteryInfo"); while (rs.next()) { * System.out.println(rs.getString(1)); * System.out.println(rs.getString(2)); * System.out.println(rs.getString(4)); * System.out.println(rs.getString(5)); } */ /* * List<ReqLottery> list = DataSourceFactory.getListObject( * ReqLottery.class, "select * from lotteryInfo"); for (ReqLottery * reqLottery : list) { * System.out.println(reqLottery.getLotteryDate()); * System.out.println(reqLottery.getLotteryId()); * System.out.println(reqLottery.getLotteryIssue()); * System.out.println(reqLottery.getLotteryNum()); * System.out.println(reqLottery.getLotteryType()); } */ /* * long count = * DataSourceFactory.findCount("select count(*) from lotteryinfo"); * System.out.println(count); */ /* * List<ReqLottery> list = DataSourceFactory.getObjList( * ReqLottery.class, "LOTTERYINFO_FINDLOTTERYINFO_FIND", new * Object[]{"1001"}); for (ReqLottery reqLottery : list) { * System.out.println(reqLottery.getLotteryDate()); * System.out.println(reqLottery.getLotteryId()); * System.out.println(reqLottery.getLotteryIssue()); * System.out.println(reqLottery.getLotteryNum()); * System.out.println(reqLottery.getLotteryType1()); } */ /* * List<UserTable> list = * DataSourceFactory.getObjList(UserTable.class, * "select * from UserTable"); for (UserTable u : list) { * System.out.println(u.getId()); System.out.println(u.getAge()); * System.out.println(u.getName()); System.out.println(u.getSex()); * } */ String[] sqlArray = { "update dept set deptCount = 20 where deptId = 1", "update UserTable set age = 20" }; int count = DataSourceFactory.batchUpdateBySql(sqlArray); System.out.println("成功了多少条:" + count); } catch (Exception e) { e.printStackTrace(); } } }
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