excel生成sql

package com.dj.dao.utils;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.OutputStreamWriter;
import java.io.Writer;
import jxl.Cell;
import jxl.Sheet;
import jxl.Workbook;
public class ExcelToSql {
public static void main(String[] args) {
jxl.Workbook readwb = null;
try {
System.out.println("开始读取");
// 构建Workbook对象, 只读Workbook对象
// 直接从本地文件创建Workbook
InputStream instream = new FileInputStream(
"D:\\sanxia\\doc\\trunk\\新oa\\系统设计\\数据库设计\\乌商项目管理平台表结构汇总.xls");
readwb = Workbook.getWorkbook(instream);
String path = "D:\\sanxia\\doc\\trunk\\新oa\\系统设计\\数据库设计\\sql\\";
for (int sheetNum = 1; sheetNum < readwb.getNumberOfSheets(); sheetNum++) {
// Sheet的下标是从0开始
// 获取第一张Sheet表
Sheet readsheet = readwb.getSheet(sheetNum);
// 获取Sheet表中所包含的总列数
int rsColumns = readsheet.getColumns();
// 获取Sheet表中所包含的总行数
int rsRows = readsheet.getRows();
// 获取指定单元格的对象引用
String sql = "";
String tableName = "";
String PK = "";
for (int i = 0; i < rsRows; i++) {
Cell[] str = readsheet.getRow(i);
if (i == 0) {
tableName = str[0].getContents().toString();
int startIndex = tableName.indexOf("（");
if (-1 == startIndex) {
startIndex = tableName.indexOf("(");
}
int endIndex = tableName.indexOf("）");
if (-1 == endIndex) {
endIndex = tableName.indexOf(")");
}
// System.out.println(tableName+":"+startIndex+"|"+endIndex);
tableName = tableName.substring(startIndex + 1,
endIndex);
if (tableName == null || "".equals(tableName.trim())) {
System.out.println("表名未知，请检查");
break;
}
tableName = tableName.toUpperCase();
System.out.println("tableName:" + tableName);
sql = sql + "drop table " + tableName + ";\n";
sql = sql + "CREATE TABLE " + tableName;
sql = sql + "\n(\n";
}
if (i == 1) {
continue;
}
if (i >= 2) {
if (i < 6) {
if (str[5].getContents().toString().contains("PK")) {
PK = PK + "," + str[1].getContents().toString();
}
}
String colName = String.format("%-30s", str[1]
.getContents().toString());
String colSize = String.format("%-20s", str[3]
.getContents().toString());
if ("M".equals(str[4].getContents().toString())) {
sql = sql + "\t" + colName + " " + colSize
+ " NOT NULL ,\n";
} else {
sql = sql + "\t" + colName + " " + colSize
+ "  ,\n";
}
}
}
if (PK.length() < 1) {
System.out.println("表主键无主键,请自行添加,注意最后一列去掉逗号");
} else {
sql = sql + "\t\t PRIMARY KEY (" + PK.substring(1)
+ ")    \n";
}
sql = sql + ");\n";
// sql = sql +
// "CREATE INDEX "+tableName+".INDEX1 ON "+tableName+"(KEY1,KEY2);     --请自行替换KEY1、KEY2\n";
for (int i = 0; i < rsRows; i++) {
Cell[] str = readsheet.getRow(i);
if (i == 0) {
String tableNamePre = str[0].getContents().toString();
int startIndex = tableNamePre.indexOf("（");
if (-1 == startIndex) {
startIndex = tableNamePre.indexOf("(");
}
tableNamePre = tableNamePre.substring(0, startIndex);
;
if (tableNamePre == null
|| "".equals(tableNamePre.trim())) {
System.out.println("表名称未知，请检查");
break;
}
String comment = tableNamePre;
sql = sql + "COMMENT ON TABLE " + tableName + " IS '"
+ comment + "'\n";
}
if (i == 1) {
continue;
}
if (i >= 2) {
String remark = str[5].getContents().toString();
remark = remark.replace("'", "");
remark = remark.replace("\"", "");
remark = remark.replace(",", "");
remark = remark.replace("，", "");
remark = remark.replace("。", "");
remark = remark.replace(".", "");
String comment = "";
if ("".equals(remark.trim())) {
comment = str[2].getContents().toString();
} else {
comment = str[2].getContents().toString() + ": "
+ remark;
}
sql = sql + "COMMENT ON COLUMN " + tableName + "."
+ str[1].getContents().toString() + " IS '"
+ comment + "';\n";
}
}
sql = sql.toUpperCase();
File file = new File(path + tableName + ".sql");
Writer outTxt = new OutputStreamWriter(new FileOutputStream(
file, false), "unicode");
outTxt.write(sql);
outTxt.close();
}
/*
* //利用已经创建的Excel工作薄,创建新的可写入的Excel工作薄 jxl.write.WritableWorkbook wwb
* = Workbook.createWorkbook(new File( "F:/红楼人物1.xls"), readwb);
* //读取第一张工作表 jxl.write.WritableSheet ws = wwb.getSheet(0);
* //获得第一个单元格对象 jxl.write.WritableCell wc = ws.getWritableCell(0,
* 0); //判断单元格的类型, 做出相应的转化 if (wc.getType() == CellType.LABEL) {
* Label l = (Label) wc; l.setString("新姓名"); } //写入Excel对象
* wwb.write(); wwb.close();
*/
} catch (Exception e) {
e.printStackTrace();
} finally {
readwb.close();
}
}
}