(1)編譯
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ gcc t19.c `mysql_config --cflags --libs` -o t19
(2)goods.csv資料檔
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ cat goods.csv
gdsno,gdsname,cost,unit,stock_qty,fac_no
t101,砂糖桔,140,斤,500,099
t102,香桔士,50,斤,400,077
(3)執行
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ ./t19 goods.csv
new_goods貨品基本資料表轉入程式
0[t001] 1[砂糖桔] 2[140] 3[斤] 4[500] 5[099]
Duplicate entry 't001' for key 'PRIMARY'
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ vi goods.csv
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ ./t19 goods.csvnew_goods貨品基本資料表轉入程式
0[t101] 1[砂糖桔] 2[140] 3[斤] 4[500] 5[099]
SQL指令: [insert into new_goods (gdsno,gdsname,cost,unit,stock_qty,fac_no) values ('t101','砂糖桔',140.00,'斤', 500, '099')] 執行成功!
0[t102] 1[香桔士] 2[50] 3[斤] 4[400] 5[077]
SQL指令: [insert into new_goods (gdsno,gdsname,cost,unit,stock_qty,fac_no) values ('t102','香桔士',50.00,'斤', 400, '077')] 執行成功!
(4)t19.c程式碼
treehrt@treehrt-BM6AE-BM1AE-BP1AE:~/mysqlc$ cat t19.c
#include <my_global.h>
#include <mysql.h>
#define HOST "localhost"
#define USER "treehrt"
#define PWD "abc123abc123"
#define DB "ilvssell"
typedef struct GOODSREC
{
char gdsno[20];
char gdsname[30];
// char spec[10];
double cost;
// double price_in;
// double price_special;
// double price_sell;
char unit[4];
int stock_qty;
char fac_no[20];
// char mem[80];
} goodsRec ;
void finish_with_error(MYSQL *con)
{
fprintf(stderr, "%s\n", mysql_error(con));
mysql_close(con);
exit(1);
}
char tokens[100][60]; //最多100個存放token
int tokensc; //tokens計數
void insert_new_goods_rec(goodsRec gR){
// printf("待寫入的資料：gR.gdsno=%s,gR.gdsname=%s gR.unit=%s gR.cost=%.2f gR.stcok_qty=%d gR.fac_no=%s\n",gR.gdsno,gR.gdsname,gR.unit,gR.cost,gR.stock_qty,gR.fac_no);
char st[500];
sprintf(st,"insert into new_goods (gdsno,gdsname,cost,unit,stock_qty,fac_no) values ('%s','%s',%.2f,'%s', %d, '%s')",gR.gdsno,gR.gdsname,gR.cost,gR.unit,gR.stock_qty,gR.fac_no) ;
MYSQL *con = mysql_init(NULL);
if (con == NULL) finish_with_error(con);
if (mysql_real_connect(con, HOST , USER, PWD, DB, 0, NULL, 0) == NULL) finish_with_error(con);
mysql_query(con, "set names utf8");
if (mysql_query(con, st)) finish_with_error(con);
printf("SQL指令: [%s] 執行成功! \n\n", st);
}
void parsecsvline(char *st ,char deli){
char tk[80];
tokensc=0;
strcpy(tk,"");
for (int i=0;i<strlen(st);i++) {
if((st[i]==deli) || (st[i]==0x0a)) {
strcpy(tokens[tokensc],tk);
tokensc++;
strcpy(tk,"");
}
else sprintf(tk,"%s%c",tk,st[i]);
}
for (int i=0;i<tokensc;i++) {
printf("%d[%s] ",i,tokens[i]);
}
printf("\n");
}
int main(int argc, char **argv)
{
char st[100];
FILE *fp;
goodsRec gR;
printf("new_goods貨品基本資料表轉入程式\n");
fp = fopen(argv[1] , "r"); //argv[1] use for csv filename ,ex cust.csv.
if(fp == NULL) {
perror("Error opening file");
return(-1);
}
fgets(st,100,fp);
while (1){
if( fgets(st, 100, fp)!=NULL ) {
parsecsvline(st,',');
strcpy(gR.gdsno,tokens[0]);
strcpy(gR.gdsname,tokens[1]);
gR.cost=atof(tokens[2]);
strcpy(gR.unit,tokens[3]);
gR.stock_qty=atoi(tokens[4]);
strcpy(gR.fac_no,tokens[5]);
insert_new_goods_rec(gR);
}
else break;
}
fclose(fp);
exit(0);
}
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