DatabaseService操作

package cn.jcenterhome.service;

import java.util.List;
import java.util.Map;
import java.util.Map.Entry;

import cn.jcenterhome.dao.DataBaseDao;
import cn.jcenterhome.util.BeanFactory;
import cn.jcenterhome.util.JavaCenterHome;
import cn.jcenterhome.vo.TableColumnsVO;
import cn.jcenterhome.vo.TableFieldVO;
import cn.jcenterhome.vo.TableStatusVO;

public class DataBaseService {
 private DataBaseDao dataBaseDao = (DataBaseDao) BeanFactory.getBean("dataBaseDao");

 
 public List<Map<String, Object>> executeQuery(String sql) {
  return dataBaseDao.executeQuery(sql);
 }

 
 public List<String> executeQuery(String sql, int columnIndex) {
  return dataBaseDao.executeQuery(sql, columnIndex);
 }

 
 public int executeUpdate(String sql) {
  return dataBaseDao.executeUpdate(sql);
 }

 
 public Map<String, Object> execute(String sql) {
  return dataBaseDao.execute(sql);
 }

 
 public int insert(String sql) {
  return dataBaseDao.insert(sql);
 }

 
 public String findFirst(String sql, int columnIndex) {
  return dataBaseDao.findFirst(sql, columnIndex);
 }

 
 public int findRows(String sql) {
  return dataBaseDao.findRows(sql);
 }

 
 public long findTableSize(String sql) {
  return dataBaseDao.findTableSize(sql);
 }

 
 public List<TableFieldVO> findTableFields(String tableName) {
  return dataBaseDao.findTableFields(tableName);
 }

 
 public List<TableColumnsVO> findTableColumns(String tableName) {
  return dataBaseDao.findTableColumns(tableName);
 }

 
 public List<TableStatusVO> findTableStatus(String sql) {
  return dataBaseDao.findTableStatus(sql);
 }

 
 public String showVersion() {
  return dataBaseDao.findFirst("SELECT VERSION()", 1);
 }

 
 public String showBasedir() {
  return dataBaseDao.findFirst("SHOW VARIABLES LIKE 'basedir'", 2);
 }

 
 public String showCreateSql(String tableName) {
  return dataBaseDao.findFirst("SHOW CREATE TABLE " + tableName, 2);
 }

 
 public List<String> showTableNames(String prefix) {
  return dataBaseDao.executeQuery("SHOW TABLES LIKE '" + prefix + "%';", 1);
 }
 
 
 /**
  * 在数据库表中插入数据
  * @param tableName 表名
  * @param insertData 数据
  * @param returnId 是否返回ID
  * @param replace 是否替换
  * @return
  */
 public int insertTable(String tableName, Map<String, Object> insertData, boolean returnId, boolean replace) {
  String comma = "";
  StringBuffer insertKey = new StringBuffer();
  StringBuffer insertValue = new StringBuffer();
  for (Entry<String, Object> entry : insertData.entrySet()) {
   insertKey.append(comma + "`" + entry.getKey() + "`");
   insertValue.append(comma + "'" + entry.getValue() + "'");
   comma = ", ";
  }
  String sql = (replace ? "REPLACE" : "INSERT") + " INTO " + JavaCenterHome.getTableName(tableName)
    + " (" + insertKey + ") VALUES (" + insertValue + ")";
  if (returnId && !replace) {
   return dataBaseDao.insert(sql);
  } else {
   dataBaseDao.executeUpdate(sql);
   return 0;
  }
 }

 
 /**
  * 更新表数据
  * @param tableName
  * @param setData
  * @param whereData
  */
 public void updateTable(String tableName, Map<String, Object> setData, Map<String, Object> whereData) {
  String comma = "";
  StringBuffer setSQL = new StringBuffer();
  
  for (Entry<String, Object> entry : setData.entrySet()) {
   setSQL.append(comma + "`" + entry.getKey() + "`='" + entry.getValue() + "'");
   comma = ", ";
  }
  
  comma = "";
  
  StringBuffer whereSQL = new StringBuffer();
  if (whereData == null || whereData.isEmpty()) {
   whereSQL.append("1");
  } else {
   for (Entry<String, Object> entry : whereData.entrySet()) {
    whereSQL.append(comma + "`" + entry.getKey() + "`='" + entry.getValue() + "'");
    comma = " AND ";
   }
  }
  dataBaseDao.executeUpdate("UPDATE " + JavaCenterHome.getTableName(tableName) + " SET " + setSQL
    + " WHERE " + whereSQL);
 }

 
 @SuppressWarnings("unchecked")
 public Map sqldumptable(List<String> excepttables, String table, int startfrom, long currsize,
   long sizelimit, boolean complete, String version, int extendins, String sqlcompat,
   String dumpcharset, String sqlcharset, boolean usehex) {
  return dataBaseDao.sqldumptable(excepttables, table, startfrom, currsize, sizelimit, complete,
    version, extendins, sqlcompat, dumpcharset, sqlcharset, usehex);
 }
}