java转换unicode，筛选文件中的insert语句并把日期给转换为可以直接在数据库执行的语句

 package com;
 import java.io.BufferedReader;
 import java.io.BufferedWriter;
 import java.io.File;
 import java.io.FileInputStream;
 import java.io.FileWriter;
 import java.io.IOException;
 import java.io.InputStreamReader;

 import javax.swing.JFileChooser;
 import javax.swing.JOptionPane;

 public class supZhtool_1 {

     public static void main(String[] args) throws IOException {

         String path ="";//源文件路径，不包括文件名称
         String pathzh = "";//转换unicode编码后文件输出路径
         String pathinsert = "";//筛选出insert语句后的文件输出路径
         String pathSource = "";//源文件路径，包含文件名称的源文件路径

         JFileChooser fDialog = new JFileChooser();

         fDialog.setDialogTitle("请选择需要转换的文件");

         int returnVal = fDialog.showOpenDialog(null);//弹出文件选择框

         if(JFileChooser.APPROVE_OPTION == returnVal){
             pathSource = fDialog.getSelectedFile().toString();//获取文件路径并赋值给源文件路径

             //判断源文件路径是否正确
             if(!"script".equals(pathSource.substring(pathSource.length()-6,pathSource.length()))){
                 JOptionPane.showMessageDialog(null, "请检查您选择的文件是否正确!");
                 return;
             }

             String path_temp1[] = pathSource.split("\\\\");

             //组装文件地址，不包含文件名称的地址
             for (int i = 0; i < path_temp1.length-1; i++) {
                 path = path + path_temp1[i]+"\\\\";
             }
             //定义转换unicode编码之后的文件名称和地址
             pathzh = path +"blazezh.script";
             //定义insert语句文件的输入地址，和文件名称
             pathinsert =  path +"01_SR0001_BTDS2DATA_DML_BTDS.sql";

         }

         unicodeChange(pathSource,pathzh);

         pickInsertSql(pathzh,pathinsert);

         JOptionPane.showMessageDialog(null, "转换完毕!"); 

     }

     /**
      * 删除转换期间产生的的无用的文件
      */
     public static void deleFile(){
         String pathG =  System.getProperty("user.dir");
         File file = new File(pathG+"\\blazezh.script");
         if (file.isFile() && file.exists()) {
             file.delete();
         }
     }

     /**
      *
      * 挑选出Insert语句，并写入到文件中
      *
      */
     public static void pickInsertSql(String pathzh,String pathinsert) throws IOException{

         File write = new File(pathinsert);

         File file = null;
         BufferedReader br = null;
         BufferedWriter bw = new BufferedWriter(new FileWriter(write));

         file = new File(pathzh);
         br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "gbk"));
         StringBuilder sb = new StringBuilder();
         String length = "";
         while ((length = br.readLine()) != null) {
             sb.append(length);

             String sql = sb.toString();
             sql = datestampChange(sql);
             sql = dateChange(sql);
             if("INSERT".equals(sql.substring(0,6))){
                 String    release_info = sql.substring(0,24);
                 if("INSERT INTO RELEASE_INFO".equals(release_info)){

                     String release_info_sub = sql.substring(0,sql.length()-1);
                     release_info_sub = release_info_sub +","+"'PingAnProject')";

                     String []temp1 =  release_info_sub.split(",");
                     for (int i = 0; i < temp1.length; i++) {
                         if(i==2){
                             temp1[2] = "'********'";
                         }
                     }

                     String insert = "";

                     for (int i = 0; i < temp1.length; i++) {

                         if(i<temp1.length-1){
                             insert = insert + temp1[i]+",";
                         }else{
                             insert = insert + temp1[i];
                         }
                     }
                     String []temp2 =  insert.split(",");
                     if(temp2.length<8){
                         bw.write("--"+insert.toString() +";"+ "\r\n");
                     }else{
                         bw.write(insert.toString() +";"+ "\r\n");
                     }
                 }else{
                     bw.write(sql.toString() +";"+ "\r\n");
                 }
                 bw.flush();
                 sb = new StringBuilder();
             }
             sb = new StringBuilder();
         }

     }

     /**
      *
      * 日期转换工具，类型是yyyy-mm-dd类型
      *
      */

     public static String dateChange(String temp){

         String temp2="";
         String [] temp1 = temp.split(",");

         for (int i = 0; i < temp1.length; i++) {
             String dateFlag = temp1[i].toString();
             String[] datesub = dateFlag.split("-");
             if(datesub.length>2&&dateFlag.length()<13){
                 dateFlag = dateFlag.substring(1,11);
                 temp1[i] = "to_date('"+dateFlag+"','yyyy-mm-dd')";
             }
         }

         for (int i = 0; i < temp1.length; i++) {
             if(i<temp1.length-1){
                 temp2 = temp2 + temp1[i]+",";
             }else{
                 temp2 = temp2 + temp1[i];
             }
         }

         return temp2;
     }

     /**
      *
      * 日期转换工具，类型是yyyy-mm-dd hh24:mi:ss.ff类型
      *
      */
     public static String datestampChange(String temp){

         String temp2="";
         String [] temp1 = temp.split(",");

         for (int i = 0; i < temp1.length; i++) {
             String dateFlag = temp1[i].toString();
             if(dateFlag.length()>30){
                 dateFlag = dateFlag.substring(1,30);
                 if("000".equals(dateFlag.substring(dateFlag.length()-3, dateFlag.length()))){
                     String    user_favorite = temp.substring(0,25);
                     if("INSERT INTO USER_FAVORITE".equals(user_favorite)){
                         temp1[i] = "to_timestamp('"+dateFlag+"','yyyy-mm-dd hh24:mi:ss.ff'))";
                     }else{
                         temp1[i] = "to_timestamp('"+dateFlag+"','yyyy-mm-dd hh24:mi:ss.ff')";
                     }

                 }
             }
         }

         for (int i = 0; i < temp1.length; i++) {
             if(i<temp1.length-1){
                 temp2 = temp2 + temp1[i]+",";
             }else{
                 temp2 = temp2 + temp1[i];
             }
         }
         return temp2;
     }

     public static void unicodeChange(String path,String pathzh) throws IOException{

         File write = new File(pathzh);

         File file = null;
         BufferedReader br = null;
         BufferedWriter bw = new BufferedWriter(new FileWriter(write));
         file = new File(path);
         br = new BufferedReader(new InputStreamReader(new FileInputStream(file), "gbk"));
         StringBuilder sb = new StringBuilder();
         String length = "";
         while ((length = br.readLine()) != null) {
             sb.append(length);
             bw.write(ascii2Native(sb.toString()) + "\r\n");
             bw.flush();
             sb = new StringBuilder();
         }
     }

     public static String ascii2Native(String str) {
         StringBuilder sb = new StringBuilder();
         int begin = 0;
         int index = str.indexOf("\\u");
         while (index != -1) {
             sb.append(str.substring(begin, index));
             sb.append(ascii2Char(str.substring(index, index + 6)));
             begin = index + 6;
             index = str.indexOf("\\u", begin);
         }
         sb.append(str.substring(begin));
         return sb.toString();
     } 

     private static char ascii2Char(String str) {
         if (str.length() != 6) {
             throw new IllegalArgumentException("长度不足6位");
         }
         if (!"\\u".equals(str.substring(0, 2))) {
             throw new IllegalArgumentException("字符必须以 \"\\u\"开头.");
         }
         String tmp = str.substring(2, 4);
         int code = Integer.parseInt(tmp, 16) << 8;
         tmp = str.substring(4, 6);
         code += Integer.parseInt(tmp, 16);
         return (char) code;
     } 

 }