快下班了,写点东西吧,
这个小工具写的有几个月了,中间做个小demo的时候还用到了,
自我感觉用着挺爽的,很小,一个类,很快,全自动,很方便,直接修改配置就行。
不多说了。
package com.base; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; import java.sql.Statement; import java.sql.Types; import java.util.ArrayList; import java.util.Date; import java.util.List; /** * @author q821424508@sina.com * @version 1.0 * */ public class Table2Entity { private static String Entity2Store = "src/com/hung/model";// 以项目名为根目录 //private static String tablesSql = "SELECT table_name FROM information_schema.tables WHERE table_schema ='common' AND NOT table_name LIKE 'sys%'"; private static String tablesSql = "SELECT table_name FROM information_schema.tables WHERE table_schema ='common' "; private static List<String> tables = new ArrayList<String>(); private static String url = "jdbc:mysql://127.0.0.1/common?useUnicode=true&characterEncoding=utf8"; private static String driver = "com.mysql.jdbc.Driver"; private static String username = "admin"; private static String password = "123456"; private static String sql = "select * from "; private static String author = "q821424508"; private static Connection conn = null; private static Statement stat = null; public static void main(String[] args) { System.out.println("---begin---"); init(); table2Entity(); System.out.println("---end---"); } /** */ private static void init() { File f = new File(Entity2Store); if (!f.exists()) { f.mkdirs(); } } /** */ private static void table2Entity() { tables = getTables(); if (null != tables && tables.size() > 0) { for (String tableName : tables) { doTable2Entity(tableName); } } } /** */ private static void doTable2Entity(String tableName) { String sql1 = sql + tableName; System.out.println("tableName = " + tableName + "\n"); conn = getConn(); try { stat = conn.createStatement(); ResultSet rs = stat.executeQuery(sql1); ResultSetMetaData metaDate = rs.getMetaData(); int count = metaDate.getColumnCount(); File classFile = getCF(tableName); FileWriter fw = new FileWriter(classFile, true); BufferedWriter bw = new BufferedWriter(fw); StringBuffer sbFields = new StringBuffer(); //toString 方法 StringBuffer toString = new StringBuffer("\tpublic String toString(){\n"); toString.append("\t\tString str=\"{"); for (int j = 0; j < count; j++) { String columnName = metaDate.getColumnName(j + 1); int type = metaDate.getColumnType(j + 1); System.out.println(columnName + " : " + type); sbFields.append(column2field(columnName, type)); toString.append(""+column2fieldName(columnName)+":'\" + "+column2fieldName(columnName)+" + \"',\" + \""); } bw.write(sbFields.toString()); //toString.replace(toString.length()-1, toString.length(), ""); toString.replace(toString.length()-8, toString.length(), ""); toString.append("\"'}\";\n"); toString.append("\t\treturn str;\n\t}\n"); bw.write(toString.toString()); bw.write("\n}\n"); bw.close(); fw.close(); System.out.println("---------------------------------"); } catch (SQLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * @param columnName * @param type * @return */ private static String column2field(String columnName, int type) { String field = ""; String getseter = ""; String fieldName = column2fieldName(columnName); field = getField(fieldName, type); getseter = getGetseter(fieldName, type); return field + "\n" + getseter; } /** * @param columnName * @param type * @return */ private static String getGetseter(String columnName, int type) { String filedName = firstChar2Upper(columnName); StringBuffer sb = new StringBuffer(""); switch (type) { case Types.BIGINT: sb.append("\tpublic long get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(long "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.INTEGER: sb.append("\tpublic int get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(int "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.CHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.DATE: sb.append("\tpublic Date get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(Date "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.DOUBLE: sb.append("\tpublic double get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(double "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.FLOAT: sb.append("\tpublic float get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(float "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.LONGNVARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.LONGVARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.NVARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.SMALLINT: sb.append("\tpublic int get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(int "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.TIMESTAMP: sb.append("\tpublic Date get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(Date "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.TINYINT: sb.append("\tpublic int get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(int "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.NUMERIC: sb.append("\tpublic long get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(long "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.VARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.BLOB: sb.append("\tpublic byte[] get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(byte[] "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; default: break; } return sb.toString(); } /** * @param columnName * @param type * @return */ private static String getField(String columnName, int type) { StringBuffer sb = new StringBuffer("\tprivate "); switch (type) { case Types.BIGINT: sb.append("long ").append(columnName); break; case Types.INTEGER: sb.append("int ").append(columnName); break; case Types.NUMERIC: sb.append("long ").append(columnName); break; case Types.CHAR: sb.append("String ").append(columnName); break; case Types.DATE: sb.append("Date ").append(columnName); break; case Types.DOUBLE: sb.append("double ").append(columnName); break; case Types.FLOAT: sb.append("float ").append(columnName); break; case Types.LONGNVARCHAR: sb.append("String ").append(columnName); break; case Types.LONGVARCHAR: sb.append("String ").append(columnName); break; case Types.NVARCHAR: sb.append("String ").append(columnName); break; case Types.SMALLINT: sb.append("int ").append(columnName); break; case Types.TIMESTAMP: sb.append("Date ").append(columnName); break; case Types.TINYINT: sb.append("int ").append(columnName); break; case Types.VARCHAR: sb.append("String ").append(columnName); break; case Types.BLOB: sb.append("byte[] ").append(columnName); break; default: System.err.println("columnName = " + columnName + " : type = " + type); break; } sb.append(";\n"); return sb.toString(); } /** * @param tableName * @return */ private static File getCF(String tableName) { File classFile = new File(Entity2Store + File.separator + table2EntityName(tableName) + ".java"); try { FileWriter fw = new FileWriter(classFile); BufferedWriter bw = new BufferedWriter(fw); String cr = getCopyRight(); String packagePath = getPachagePath(); String importPath = getImportPath(); String clazzName = getClassName(tableName); bw.write(cr); bw.write(packagePath); bw.write(importPath); bw.write(clazzName); bw.flush(); bw.close(); fw.close(); } catch (IOException e) { e.printStackTrace(); } return classFile; } /** * @param tableName * @return */ private static String getClassName(String tableName) { String className = table2EntityName(tableName); className = "public class " + className + " implements Serializable{\n"; className += "\n\t" + "private static final long serialVersionUID =" + (tableName + (Math.random() * 90000000 + 10000000)).hashCode()+"l"; className += ";\n\n"; return className; } /** * @param tableName * @return */ private static String table2EntityName(String tableName) { tableName = column2fieldName(tableName); tableName = firstChar2Upper(tableName); return tableName; } /** * @param tableName * @return */ private static String firstChar2Upper(String tableName) { String firstChar = tableName.substring(0, 1); String entityName = tableName.replaceFirst(firstChar, firstChar .toUpperCase()); return entityName; } /** * @param tableName * @return */ private static String column2fieldName(String columnName) { columnName = columnName.toLowerCase(); while (columnName.contains("_")) { int i = columnName.indexOf('_'); String char2Upper = columnName.substring(i + 1, i + 2); columnName = columnName.replaceFirst("_" + char2Upper, char2Upper .toUpperCase()); } while (columnName.contains("-")) { int i = columnName.indexOf('-'); String char2Upper = columnName.substring(i + 1, i + 2); columnName = columnName.replaceFirst("-" + char2Upper, char2Upper .toUpperCase()); } return columnName; } /** * @return */ private static String getImportPath() { StringBuffer sb = new StringBuffer(); sb.append("import java.io.Serializable;\n"); sb.append("import java.util.Date;\n\n"); return sb.toString(); } /** * @return */ private static String getPachagePath() { return "package " + Entity2Store.replace("src/", "").replace('/', '.') + ";\n\n"; } /** * @return */ private static String getCopyRight() { StringBuffer cr = new StringBuffer("/**"); cr.append("\n"); cr.append("*/"); cr.append("\n"); cr.append("\n"); cr.append("\n"); return cr.toString(); } /** * @return */ private static List<String> getTables() { conn = getConn(); try { stat = conn.createStatement(); ResultSet rs = stat.executeQuery(tablesSql); while (rs.next()) { tables.add(rs.getString(1)); } } catch (SQLException e) { e.printStackTrace(); } return tables; } /** * @return */ private static Connection getConn() { if (null != conn) { return conn; } try { Class.forName(driver); conn = DriverManager.getConnection(url, username, password); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } return conn; } } // end
其实这小工具早就想放出来了,但是考虑下,netbean自带的有这个工具,eclipse好像也有(需要插件)
myeclipse更不用说了,必须有,不过要是不知道的人,用着也挺不方便,
为什么要写这个东西?
我们开发的时候用的是eclipse,尝试了安装插件来完成,但是没有成功,之前在上家公司的时候,boss用一个晚上搞出来的东西,自己也想试试,其实自从boss写出来之后一直有这个冲动,boss是用python写的,
这次做项目的机会,自己写了一个,
总共花费2天不到的时间吧,看来boss就是boss,不得不服
先说明一下,这个小工具并不是支持全部sql类型,有需要的可以自己扩充,
原来我想把这个工具优化一下,写成配置文件的方式,后来就一拖再拖,直到现在。
欢迎随便转发,使用,修改,不过请注明原文出出。
欢迎拍砖,
附加:
DB2查询所有表明的sql:select tabname from syscat.tables where tabschema ='DB2ADMIN' and tabname like '%TMP1'
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今天更新个小版本,添加对Types.REAL类型的支持,
今天测试时,在mysql里面,mysql的数据类型是float,
所以代码里面也按照Types.REAL对应float来做的
同时实现了,包名和文件路径不同的设置,如果不单独设置包名,则默认和文件路径相同
package com.areashop; import java.io.BufferedWriter; import java.io.File; import java.io.FileWriter; import java.io.IOException; import java.sql.Connection; import java.sql.DriverManager; import java.sql.ResultSet; import java.sql.ResultSetMetaData; import java.sql.SQLException; import java.sql.Statement; import java.sql.Types; import java.util.ArrayList; import java.util.Date; import java.util.List; /** * @author q821424508@sina.com * @version 1.1 * */ public class Table2Entity { private static String pakagePath="model"; private static String Entity2Store = "src/main/java/model";// 以项目名为根目录 //private static String tablesSql = "SELECT table_name FROM information_schema.tables WHERE table_schema ='common' AND NOT table_name LIKE 'sys%'"; private static String tablesSql = "SELECT table_name FROM information_schema.tables WHERE table_schema ='property' "; private static List<String> tables = new ArrayList<String>(); private static String url = "jdbc:mysql://127.0.0.1/property?useUnicode=true&characterEncoding=utf8"; private static String driver = "com.mysql.jdbc.Driver"; private static String username = "root"; private static String password = ""; private static String sql = "select * from "; private static String author = "q821424508"; private static Connection conn = null; private static Statement stat = null; public static void main(String[] args) { System.out.println("---begin---"); init(); table2Entity(); System.out.println("---end---"); } /** */ private static void init() { File f = new File(Entity2Store); if (!f.exists()) { f.mkdirs(); } } /** */ private static void table2Entity() { tables = getTables(); if (null != tables && tables.size() > 0) { for (String tableName : tables) { doTable2Entity(tableName); } } } /** */ private static void doTable2Entity(String tableName) { String sql1 = sql + tableName; System.out.println("tableName = " + tableName + "\n"); conn = getConn(); try { stat = conn.createStatement(); ResultSet rs = stat.executeQuery(sql1); ResultSetMetaData metaDate = rs.getMetaData(); int count = metaDate.getColumnCount(); File classFile = getCF(tableName); FileWriter fw = new FileWriter(classFile, true); BufferedWriter bw = new BufferedWriter(fw); StringBuffer sbFields = new StringBuffer(); //toString 方法 StringBuffer toString = new StringBuffer("\tpublic String toString(){\n"); toString.append("\t\tString str=\"{"); for (int j = 0; j < count; j++) { String columnName = metaDate.getColumnName(j + 1); int type = metaDate.getColumnType(j + 1); System.out.println(columnName + " : " + type); sbFields.append(column2field(columnName, type)); toString.append(""+column2fieldName(columnName)+":'\" + "+column2fieldName(columnName)+" + \"',\" + \""); } bw.write(sbFields.toString()); //toString.replace(toString.length()-1, toString.length(), ""); toString.replace(toString.length()-8, toString.length(), ""); toString.append("\"'}\";\n"); toString.append("\t\treturn str;\n\t}\n"); bw.write(toString.toString()); bw.write("\n}\n"); bw.close(); fw.close(); System.out.println("---------------------------------"); } catch (SQLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } } /** * @param columnName * @param type * @return */ private static String column2field(String columnName, int type) { String field = ""; String getseter = ""; String fieldName = column2fieldName(columnName); field = getField(fieldName, type); getseter = getGetseter(fieldName, type); return field + "\n" + getseter; } /** * @param columnName * @param type * @return */ private static String getGetseter(String columnName, int type) { String filedName = firstChar2Upper(columnName); StringBuffer sb = new StringBuffer(""); switch (type) { case Types.BIGINT: sb.append("\tpublic long get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(long "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.INTEGER: sb.append("\tpublic int get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(int "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.CHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.DATE: sb.append("\tpublic Date get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(Date "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.DOUBLE: sb.append("\tpublic double get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(double "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.FLOAT: sb.append("\tpublic float get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(float "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.REAL: sb.append("\tpublic float get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(float "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.LONGNVARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.LONGVARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.NVARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.SMALLINT: sb.append("\tpublic int get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(int "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.TIMESTAMP: sb.append("\tpublic Date get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(Date "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.TINYINT: sb.append("\tpublic int get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(int "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.NUMERIC: sb.append("\tpublic long get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(long "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.VARCHAR: sb.append("\tpublic String get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(String "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; case Types.BLOB: sb.append("\tpublic byte[] get"); sb.append(filedName); sb.append("(){\n"); sb.append("\t\treturn "); sb.append("this."); sb.append(columnName); sb.append(";\n"); sb.append("\t}\n"); sb.append("\tpublic void set"); sb.append(filedName); sb.append("(byte[] "); sb.append(columnName); sb.append("){\n"); sb.append("\t\t"); sb.append("this."); sb.append(columnName); sb.append("=" + columnName); sb.append(";\n"); sb.append("\t}\n\n"); break; default: break; } return sb.toString(); } /** * @param columnName * @param type * @return */ private static String getField(String columnName, int type) { StringBuffer sb = new StringBuffer("\tprivate "); switch (type) { case Types.BIGINT: sb.append("long ").append(columnName); break; case Types.INTEGER: sb.append("int ").append(columnName); break; case Types.NUMERIC: sb.append("long ").append(columnName); break; case Types.CHAR: sb.append("String ").append(columnName); break; case Types.DATE: sb.append("Date ").append(columnName); break; case Types.DOUBLE: sb.append("double ").append(columnName); break; case Types.FLOAT: sb.append("float ").append(columnName); break; case Types.REAL: sb.append("float ").append(columnName); break; case Types.LONGNVARCHAR: sb.append("String ").append(columnName); break; case Types.LONGVARCHAR: sb.append("String ").append(columnName); break; case Types.NVARCHAR: sb.append("String ").append(columnName); break; case Types.SMALLINT: sb.append("int ").append(columnName); break; case Types.TIMESTAMP: sb.append("Date ").append(columnName); break; case Types.TINYINT: sb.append("int ").append(columnName); break; case Types.VARCHAR: sb.append("String ").append(columnName); break; case Types.BLOB: sb.append("byte[] ").append(columnName); break; default: System.err.println("columnName = " + columnName + " : type = " + type); break; } sb.append(";\n"); return sb.toString(); } /** * @param tableName * @return */ private static File getCF(String tableName) { File classFile = new File(Entity2Store + File.separator + table2EntityName(tableName) + ".java"); try { FileWriter fw = new FileWriter(classFile); BufferedWriter bw = new BufferedWriter(fw); String cr = getCopyRight(); String packagePath = getPachagePath(); String importPath = getImportPath(); String clazzName = getClassName(tableName); bw.write(cr); bw.write(packagePath); bw.write(importPath); bw.write(clazzName); bw.flush(); bw.close(); fw.close(); } catch (IOException e) { e.printStackTrace(); } return classFile; } /** * @param tableName * @return */ private static String getClassName(String tableName) { String className = table2EntityName(tableName); className = "public class " + className + " implements Serializable{\n"; className += "\n\t" + "private static final long serialVersionUID =" + (tableName + (Math.random() * 90000000 + 10000000)).hashCode()+"l"; className += ";\n\n"; return className; } /** * @param tableName * @return */ private static String table2EntityName(String tableName) { tableName = column2fieldName(tableName); tableName = firstChar2Upper(tableName); return tableName; } /** * @param tableName * @return */ private static String firstChar2Upper(String tableName) { String firstChar = tableName.substring(0, 1); String entityName = tableName.replaceFirst(firstChar, firstChar .toUpperCase()); return entityName; } /** * @param tableName * @return */ private static String column2fieldName(String columnName) { columnName = columnName.toLowerCase(); while (columnName.contains("_")) { int i = columnName.indexOf('_'); String char2Upper = columnName.substring(i + 1, i + 2); columnName = columnName.replaceFirst("_" + char2Upper, char2Upper .toUpperCase()); } while (columnName.contains("-")) { int i = columnName.indexOf('-'); String char2Upper = columnName.substring(i + 1, i + 2); columnName = columnName.replaceFirst("-" + char2Upper, char2Upper .toUpperCase()); } return columnName; } /** * @return */ private static String getImportPath() { StringBuffer sb = new StringBuffer(); sb.append("import java.io.Serializable;\n"); sb.append("import java.util.Date;\n\n"); return sb.toString(); } /** * @return */ private static String getPachagePath() { if(null!=pakagePath){ return "package " +pakagePath.replace('/', '.')+ ";\n\n"; } return "package " + Entity2Store.replace("src/", "").replace('/', '.') + ";\n\n"; } /** * @return */ private static String getCopyRight() { StringBuffer cr = new StringBuffer("/**"); cr.append("\n"); cr.append("*/"); cr.append("\n"); cr.append("\n"); cr.append("\n"); return cr.toString(); } /** * @return */ private static List<String> getTables() { conn = getConn(); try { stat = conn.createStatement(); ResultSet rs = stat.executeQuery(tablesSql); while (rs.next()) { tables.add(rs.getString(1)); } } catch (SQLException e) { e.printStackTrace(); } return tables; } /** * @return */ private static Connection getConn() { if (null != conn) { return conn; } try { Class.forName(driver); conn = DriverManager.getConnection(url, username, password); } catch (ClassNotFoundException e) { e.printStackTrace(); } catch (SQLException e) { e.printStackTrace(); } return conn; } } // end
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