From 3a539f593fac973a294ffc86890003b709357504 Mon Sep 17 00:00:00 2001 From: 502647092 Date: Mon, 7 Sep 2015 20:54:21 +0800 Subject: [PATCH] remove sql and FileUtils... Signed-off-by: 502647092 --- .../cn/citycraft/Yum/sql/MySQLHelper.java | 36 -- .../java/cn/citycraft/Yum/sql/SQLHelper.java | 416 ------------------ .../cn/citycraft/Yum/sql/SQLiteHelper.java | 39 -- .../java/cn/citycraft/Yum/utils/FileUtil.java | 47 -- 4 files changed, 538 deletions(-) delete mode 100644 src/main/java/cn/citycraft/Yum/sql/MySQLHelper.java delete mode 100644 src/main/java/cn/citycraft/Yum/sql/SQLHelper.java delete mode 100644 src/main/java/cn/citycraft/Yum/sql/SQLiteHelper.java delete mode 100644 src/main/java/cn/citycraft/Yum/utils/FileUtil.java diff --git a/src/main/java/cn/citycraft/Yum/sql/MySQLHelper.java b/src/main/java/cn/citycraft/Yum/sql/MySQLHelper.java deleted file mode 100644 index 71e344d..0000000 --- a/src/main/java/cn/citycraft/Yum/sql/MySQLHelper.java +++ /dev/null @@ -1,36 +0,0 @@ -package cn.citycraft.Yum.sql; - -// import java.sql.*; - -/** - * 数据库操作类 - * - * @author 蒋天蓓 2015年7月14日下午3:25:06 - */ -public class MySQLHelper extends SQLHelper { - - private static String drivername = "com.mysql.jdbc.Driver"; - - /** - * 初始化连接信息 - * - * @param host - * - 域名 - * @param port - * - 端口 - * @param dbname - * - 数据库 - * @param username - * - 用户名 - * @param password - * - 密码 - */ - public MySQLHelper(String host, String port, String dbname, String username, String password) { - super(password, password, drivername, getUrl(host, port, dbname)); - } - - public static String getUrl(String host, String port, String dbaName) { - String Encode = "?&useUnicode=true&characterEncoding=utf-8"; - return "jdbc:mysql://" + host + ":" + port + "/" + dbaName + Encode; - } -} diff --git a/src/main/java/cn/citycraft/Yum/sql/SQLHelper.java b/src/main/java/cn/citycraft/Yum/sql/SQLHelper.java deleted file mode 100644 index 0e82961..0000000 --- a/src/main/java/cn/citycraft/Yum/sql/SQLHelper.java +++ /dev/null @@ -1,416 +0,0 @@ -package cn.citycraft.Yum.sql; - -/* - * 数据库连接、选择、更新、删除演示 - */ -// import java.sql.*; -import java.io.BufferedReader; -import java.io.File; -import java.io.FileReader; -import java.sql.Connection; -import java.sql.DatabaseMetaData; -import java.sql.DriverManager; -import java.sql.PreparedStatement; -import java.sql.ResultSet; -import java.sql.SQLException; -import java.sql.Statement; -import java.util.ArrayList; -import java.util.HashMap; -import java.util.Iterator; -import java.util.List; -import java.util.Map; -import java.util.Map.Entry; - -/** - * @author 蒋天蓓 2015年7月14日下午3:25:06 数据库操作类 - */ -public abstract class SQLHelper { - - // ///////////////////////////////////////———–>>>数据成员 and 构造函数 - protected Connection dbconn = null; - protected Statement dbstate = null; - protected ResultSet dbresult = null; - - protected String username; - protected String password; - protected String url; - - protected String drivername; - - /** - * 初始化连接信息 - * - * @param username - * - 用户名 - * @param password - * - 密码 - * @param drivername - * - 驱动名称 - * @param url - * - 数据库地址 - */ - public SQLHelper(String username, String password, String drivername, String url) { - try { - Class.forName(drivername).newInstance(); - } catch (Exception e) { - } - this.username = username; - this.password = password; - this.drivername = drivername; - this.url = url; - } - - /** - * 创建数据表 - * - * @param tableName - * - 表名 - * @param fields - * - 字段参数 - * @param Conditions - * -附加值 - * @return 运行结果 - */ - public boolean createTables(String tableName, HashMap fields, String Conditions) { - if (!dbConnection()) - return false; - String kv = ""; - for (Entry kvs : fields.entrySet()) - kv += "`" + kvs.getKey() + "` " + kvs.getValue() + " NOT NULL , "; - kv = kv.substring(0, kv.length() - 2);// 根据String的索引提取子串 - String sql = "CREATE TABLE `" + tableName + "` ( " + kv + (Conditions == "" ? "" : " , " + Conditions) + " ) ENGINE = InnoDB DEFAULT CHARSET=UTF8"; - try { - PreparedStatement state = dbconn.prepareStatement(sql); - state.executeUpdate(); - state.close(); - return true; - } catch (final Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - } - return false; - } - - /** - * 断开数据库 - * - * @return bool值，成功返回true，失败返回false - */ - public boolean dbClose() { - try { - dbconn.close(); - return true; - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - return false; - } - }// end dbClose() - - /** - * 连接到数据库 - * - * @return 是否成功 - */ - public boolean dbConnection() { - try { - dbconn = DriverManager.getConnection(url, username, password); - dbstate = dbconn.createStatement(); - return true; - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage());// 得到出错信息 - print("登录URL: " + url); // 发生错误时，将连接数据库信息打印出来 - print("登录账户: " + username); - print("登录密码: " + password); - return false; - } - } - - /** - * 对数据库表中的记录进行删除操作 - * - * @param tableName - * @param condition - * @return bool值，表示删除成功或者失败。 - */ - public boolean dbDelete(String tableName, HashMap selConditions) {// ——–>>>删除操作 - if (!dbConnection()) - return false; - String selCondition = ""; - if (selConditions != null && !selConditions.isEmpty()) { - for (Entry kvs : selConditions.entrySet()) - selCondition += kvs.getKey() + "='" + kvs.getValue() + "', "; - selCondition = " WHERE " + selCondition.substring(0, selCondition.length() - 2);// 根据String的索引提取子串 - } - String sql = "DELETE FROM `" + tableName + "` " + selCondition; - try { - dbstate.executeUpdate(sql); - return true; - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - return false; - } - }// end dbDelete(…) - - /** - * 判断数据库某个值是否存在! - * - * @param tableName - * 数据库表名 - * @param fieles - * 字段名 - * @param selCondition - * 选择条件 - * @return 首个符合条件的结果 - */ - public boolean dbExist(String tableName, HashMap selConditions) { - if (!dbConnection()) - return false; - String selCondition = ""; - if (selConditions != null && !selConditions.isEmpty()) { - for (Entry kvs : selConditions.entrySet()) - selCondition += kvs.getKey() + "='" + kvs.getValue() + "', "; - selCondition = " WHERE " + selCondition.substring(0, selCondition.length() - 2);// 根据String的索引提取子串 - } - String sql = "SELECT * FROM " + tableName + selCondition; - try { - dbresult = dbstate.executeQuery(sql); - return dbresult.next(); - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - } - return false; - } - - /** - * 对数据库表进行插入操作 - * - * @param tabName - * - 表名 - * @param values - * - 带键值的HashMap - * @return bool值，成功返回true，失败返回false - */ - public boolean dbInsert(String tabName, HashMap values) { - if (!dbConnection()) - return false; - String sql = ""; - String insertFields = ""; - String insertValues = ""; - for (Entry kvs : values.entrySet()) { - insertFields += "`" + kvs.getKey() + "`, "; - insertValues += "'" + kvs.getValue() + "', "; - } - insertFields = insertFields.substring(0, insertFields.length() - 2); - insertValues = insertValues.substring(0, insertValues.length() - 2); - sql += "INSERT INTO `" + tabName + "` (" + insertFields + ") VALUES" + "(" + insertValues + ")"; - try { - dbstate.executeUpdate(sql); - return true; - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - return false; - } - - }// end dbInsert(…) - - /** - * 对数据库表进行选择操作！ - * - * @param tableName - * 数据库表名 - * @param fieles - * 字段名 - * @param selCondition - * 选择条件 - * @return 一个含有map的List（列表） - */ - @SuppressWarnings({ "rawtypes", "unchecked" }) - public List dbSelect(String tableName, List fields, String selCondition) { - if (!dbConnection()) - return null; - List mapInList = new ArrayList(); - String selFields = ""; - for (int i = 0; i < fields.size(); ++i) - selFields += fields.get(i) + ", "; - String selFieldsTem = selFields.substring(0, selFields.length() - 2);// 根据String的索引提取子串 - String sql = "SELECT " + selFieldsTem + " FROM `" + tableName + "`" + selCondition == "" ? "" : " WHERE " + selCondition; - try { - dbstate = dbconn.createStatement(); - try { - dbresult = dbstate.executeQuery(sql); - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - } - while (dbresult.next()) { - Map selResult = new HashMap(); - for (String col : fields) - selResult.put(col, dbresult.getString(col)); - mapInList.add(selResult); - } - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - } - return mapInList; - }// end String dbSelect(…) - - /** - * 对数据库表进行选择操作！ - * - * @param tableName - * 数据库表名 - * @param fieles - * 字段名 - * @param selCondition - * 选择条件 - * @return 首个符合条件的结果 - */ - public String dbSelectFirst(String tableName, String fields, HashMap selConditions) { - if (!dbConnection()) - return null; - String selFieldsTem = fields; - String selCondition = ""; - if (selConditions != null && !selConditions.isEmpty()) { - for (Entry kvs : selConditions.entrySet()) - selCondition += kvs.getKey() + "='" + kvs.getValue() + "', "; - selCondition = " WHERE " + selCondition.substring(0, selCondition.length() - 2);// 根据String的索引提取子串 - } - String sql = "SELECT " + selFieldsTem + " FROM " + tableName + selCondition + " limit 1"; - try { - dbresult = dbstate.executeQuery(sql); - if (dbresult.next()) - return dbresult.getString(fields); - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - } - return null; - } - - /** - * 对数据库表中记录进行更新操作 - * - * @param tabName - * @param reCount - * @return bool值，成功返回true，失败返回false - */ - @SuppressWarnings({ "rawtypes" }) - public boolean dbUpdate(String tabName, HashMap reCount, String upCondition) { - if (!dbConnection()) - return false; - String Values = ""; - Iterator keyValues = reCount.entrySet().iterator(); - for (int i = 0; i < reCount.size(); ++i) { - Map.Entry entry = (Map.Entry) keyValues.next(); - Object key = entry.getKey(); - Object value = entry.getValue(); - Values += key + "='" + value + "'" + ", "; - } - String updateValues = Values.substring(0, Values.length() - 2); - String sql = "UPDATE `" + tabName + "` SET " + updateValues + " " + upCondition; - try { - dbstate.executeUpdate(sql); - return true; - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL查询语句: " + sql); - return false; - } - }// end dbUpdate(…) - - /** - * 判断数据表是否存在 - * - * @param table - * - 表名 - * @return 是否存在 - */ - public boolean isTableExists(final String table) { - try { - if (!dbConnection()) - return false; - final DatabaseMetaData dbm = dbconn.getMetaData(); - final ResultSet tables = dbm.getTables(null, null, table, null); - return tables.next(); - } catch (final SQLException e) { - e.printStackTrace(); - } - return false; - } - - public void print(String str)// 简化输出 - { - System.out.println(str); - } - - /** - * 运行SQL语句 - * - * @param sql - * - SQL语句 - * @return 运行结果 - */ - public boolean runSql(String sql) { - if (!dbConnection()) - return false; - try { - PreparedStatement state = dbconn.prepareStatement(sql); - state.executeUpdate(); - state.close(); - return true; - } catch (final Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL语句: " + sql); - } - return false; - } - - /** - * 运行SQL文件 - * - * @param sql - * - SQL文件 - * @return 运行结果 - */ - public boolean runSqlfile(File file) { - BufferedReader br = null; - Statement state = null; - String sql = null; - if (!file.exists()) - return false; - - if (!dbConnection()) - return false; - - try { - print("执行SQL文件: " + file.getName() + " ..."); - br = new BufferedReader(new FileReader(file)); - state = dbconn.createStatement(); - while ((sql = br.readLine()) != null) - if (sql != "") - try { - state.executeUpdate(sql); - } catch (Exception e) { - print("数据库操作出错: " + e.getMessage()); - print("SQL语句: " + sql); - } - return true; - } catch (Exception e) { - print("执行SQL文件 " + file.getName() + "出错: " + e.getMessage()); - return false; - } finally { - try { - if (state != null) - state.close(); - if (br != null) - br.close(); - } catch (Exception e) { - } - } - } - -} diff --git a/src/main/java/cn/citycraft/Yum/sql/SQLiteHelper.java b/src/main/java/cn/citycraft/Yum/sql/SQLiteHelper.java deleted file mode 100644 index d8f5487..0000000 --- a/src/main/java/cn/citycraft/Yum/sql/SQLiteHelper.java +++ /dev/null @@ -1,39 +0,0 @@ -package cn.citycraft.Yum.sql; - -// import java.sql.*; - -/** - * 数据库操作类 - * - * @author 蒋天蓓 2015年7月14日下午3:25:06 - */ -public class SQLiteHelper extends SQLHelper { - - private static String drivername = "org.sqlite.JDBC"; - - /** - * 初始化连接信息 - * - * @param host - * - 域名 - * @param port - * - 端口 - * @param dbname - * - 数据库 - * @param username - * - 用户名 - * @param password - * - 密码 - */ - public SQLiteHelper(String filepath, String username, String password) { - super(password, password, drivername, getUrl(filepath)); - } - - public static String getUrl(String filepath) { - return "jdbc:sqlite:" + filepath; - } - // - // Class.forName("org.sqlite.JDBC"); - // Connection conn = - // DriverManager.getConnection("jdbc:sqlite:filename");//filename为你的SQLite数据名称 -} diff --git a/src/main/java/cn/citycraft/Yum/utils/FileUtil.java b/src/main/java/cn/citycraft/Yum/utils/FileUtil.java deleted file mode 100644 index fd6ac8a..0000000 --- a/src/main/java/cn/citycraft/Yum/utils/FileUtil.java +++ /dev/null @@ -1,47 +0,0 @@ -/** - * - */ -package cn.citycraft.Yum.utils; - -import java.io.File; -import java.io.FileInputStream; -import java.io.FileOutputStream; -import java.io.InputStream; - -/** - * 文件处理工具 - * - * @author 蒋天蓓 - * 2015年8月31日上午9:09:54 - */ -public class FileUtil { - /** - * 复制文件 - * - * @param src - * - 源文件 - * @param des - * - 目标文件 - * @return 是否成功 - */ - public static boolean copyFile(File src, File des) { - InputStream inStream = null; - FileOutputStream fs = null; - try { - int byteread = 0; - if (!src.exists()) - return false; - inStream = new FileInputStream(src); // 读入原文件 - fs = new FileOutputStream(des); - byte[] buffer = new byte[1024]; - while ((byteread = inStream.read(buffer)) != -1) { - fs.write(buffer, 0, byteread); // 写入到目标文件 - } - inStream.close(); - fs.close(); - return true; - } catch (Exception e) { - return false; - } - } -}