GPX文件，与JAVA传递数据

#include<iostream>
#include <stdio.h>
#include <stdlib.h>
#include"windows.h"
#include <string>
#include <io.h>
#include<cstring>

/* DO NOT EDIT THIS FILE - it is machine generated */
#include "jni.h"
using namespace std;
/* Header for class test_Test */
char to_search1[] = "d:\\GPSTrack\\";
char to_search[] = "d:\\GPSTrack\\*";
char to_all[50000] = {0};
 int offset = 0;

int the_replace1(char pp[])
{

 int i = 0;
  while(pp[i] != '\0')
  {
   if(pp[i] == '*')
   {
    pp[i] = '\0';
    return 0;
   }
    i++;

  }

 return 0;
}

int the_start_time(char pp[])
{
 int i = 0;
 while(pp[i] != '\0')
 {
  if(pp[i] == ' ')
  {
   pp[i] = '\0';
   return 0;
  }
  i++;
 }
 return 0;
}

#ifndef _Included_util_GPSUtil
#define _Included_util_GPSUtil
#ifdef __cplusplus
extern "C" {
#endif
/*
 * Class:     util_GPSUtil
 * Method:    selectGPSInfo
 * Signature: (Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;
 */
JNIEXPORT jstring JNICALL Java_util_GPSUtil_selectGPSInfo
(JNIEnv * env, jobject, jstring the_id, jstring the_start, jstring the_end, jstring the_jump)
{

 char The_id[100] = {0};
 char* str_condition=(char*)env->GetStringUTFChars(the_id,JNI_FALSE);
 strncpy(The_id,str_condition,strlen(str_condition)+1);
 //printf("the_id = %s,sizeof = %d;The_id = %s,strlen = %d\n",the_id,sizeof(the_id),The_id,strlen(The_id));

 char The_start[100] = {0};
 char* str_start=(char*)env->GetStringUTFChars(the_start,JNI_FALSE);
 strncpy(The_start,str_start,strlen(str_start)+1);

 char The_end[100] = {0};
 char* str_end=(char*)env->GetStringUTFChars(the_end,JNI_FALSE);
 strncpy(The_end,str_end,strlen(str_end)+1);

 char The_jump[100] = {0};
 char* str_jump=(char*)env->GetStringUTFChars(the_jump,JNI_FALSE);
 strncpy(The_jump,str_jump,strlen(str_jump)+1);

 char the_time[100] = {0};
 strncpy(the_time,The_start,strlen(The_start)+1);
 //strcpy(the_time,The_start);
 the_start_time(the_time);
 
 int time_ok = atoi(The_jump);
 printf("the_time = %s;;;;;time_ok = %d\n",The_jump,time_ok);
 int number = 0;
// printf("处理后起始时间的年月日 = %s,strlen = %d\n",the_time,strlen(the_time));

 

// printf("开始处理\n");
 long handle;                                               //用于查找的句柄
     struct _finddata_t fileinfo;                          //文件信息的结构体
     handle=_findfirst(to_search,&fileinfo);         //第一次查找
     if(-1==handle)
  {
   printf("打开错误\n");
   return 0;
  }
    printf("%s,ok\n",fileinfo.name); //打印出找到的文件的文件名

 

     while(!_findnext(handle,&fileinfo))        //循环查找其他符合的文件，知道找不到其他的为止
    {
         printf("fileinfo.name = %s,strlen = %d\n",fileinfo.name,strlen(fileinfo.name));
   if(!strncmp(fileinfo.name,the_time,strlen(fileinfo.name)))
   {
    strcat(to_search1,fileinfo.name);
    strcat(to_search1,"\\");
    strcat(to_search1,The_id);
    strcat(to_search1,"\\*");
   printf("找到文件，开始读    %s\n",to_search1);
   break;
   }

    }
    _findclose(handle);                                      //别忘了关闭句柄

 int num = 0;
  handle=_findfirst(to_search1,&fileinfo);         //第一次查找
     if(-1==handle)return 0;
    printf("%s,ok\n",fileinfo.name);                         //打印出找到的文件的文件名
     while(!_findnext(handle,&fileinfo))        //循环查找其他符合的文件，知道找不到其他的为止
    {
         printf("%s\n",fileinfo.name);

   if(num == 0)
   {
    num++;
    continue;
   }
   the_replace1(to_search1);
   strcat(to_search1,fileinfo.name);
 //  printf("找到了%s\n",to_search1);

   FILE*  file1;
   int ret;
   s_NV_GPS_FILEHEAD first;
   s_NV_GPS_All second;

   file1 = fopen(to_search1,"r"); 
   fread(&first,sizeof(first),1,file1);
   printf("%s\n",first.szDeviceID);
   char *to_all1;
   while(1)
   {

    ret = fread(&second,sizeof(second),1,file1);
    if(ret == 0)
    {
     break;
    }

   // printf("%lf  %lf  %f  %f  %d  %s  %s\n",second.stBaseInfo.dbLongitude,second.stBaseInfo.dbLatitude,second.stBaseInfo.fDirect,second.stBaseInfo.fSpeed,second.stExternInfo.sHigh,second.stExternInfo.cSatelliteNumber,second.szTime);
    
    if(strncmp(The_start,second.szTime,strlen(second.szTime)) >= 0 && strncmp(The_end,second.szTime,strlen(second.szTime)) >= 0)
    {
     if(number == time_ok)
     {

      offset += sprintf(to_all + offset, "%lf,", second.stBaseInfo.dbLongitude);
      offset += sprintf(to_all + offset, "%lf,", second.stBaseInfo.dbLatitude);
      offset += sprintf(to_all + offset, "%f,", second.stBaseInfo.fDirect);
      offset += sprintf(to_all + offset, "%f,", second.stBaseInfo.fSpeed);
      offset += sprintf(to_all + offset, "%d,", second.stExternInfo.sHigh);
      offset += sprintf(to_all + offset, "%x,", second.stExternInfo.cSatelliteNumber);
      offset += sprintf(to_all + offset, "%s;", second.szTime);

 

     // printf("%lf  %lf  %f  %f  %d  %s  %s\n",second.stBaseInfo.dbLongitude,second.stBaseInfo.dbLatitude,second.stBaseInfo.fDirect,second.stBaseInfo.fSpeed,second.stExternInfo.sHigh,second.stExternInfo.cSatelliteNumber,second.szTime);
      number = 0;
      printf("111111111111111111111111111\n%s\n",to_all);
     }

     number++;
    }

    fflush(NULL);
   }

   fclose(file1);

   if(num == 1)
   {
    break;
   }
    }

  /*释放资源*/
  env->ReleaseStringUTFChars(the_id,str_condition);
  env->ReleaseStringUTFChars(the_start,str_start);
  env->ReleaseStringUTFChars(the_end,str_end);
  env->ReleaseStringUTFChars(the_jump,str_jump);
  _findclose(handle);

 // printf(to_all);
  printf("%s\n",to_all);
  //加载string类
   jclass strClass = env->FindClass("Ljava/lang/String;");
   //获得方法id
   jmethodID ctorID = env->GetMethodID(strClass, "<init>", "([BLjava/lang/String;)V");

  //将字符串转换为jstring 
  jbyteArray   bytes_time = env->NewByteArray(strlen(to_all));
    env->SetByteArrayRegion(bytes_time, 0, strlen(to_all), (jbyte*)to_all);
   jstring js_time = env->NewStringUTF("utf-8");

  js_time=(jstring)env->NewObject(strClass, ctorID, bytes_time, js_time);

 // system("pause");
 
  return js_time;
};

#ifdef __cplusplus
}
#endif
#endif