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主题:一个将文件数据(汉字)导入到mysql的C程序

mysql:
------------------------------------------------------------------
mysql> create table zy ( xuhao int(6) unsigned zerofill auto_increment
primary key not null, fenqu char(50) character set utf8, bianma int(6)
unsigned zerofill, liexin char(50) character set utf8, weizhi char(50)
character set utf8 );
Query OK, 0 rows affected (0.62 sec)

mysql> describe zy;
+--------+--------------------------+------+-----+---------+----------------+
| Field  | Type                     | Null | Key | Default | Extra
    |
+--------+--------------------------+------+-----+---------+----------------+
| xuhao  | int(6) unsigned zerofill | NO   | PRI | NULL    |
auto_increment |
| fenqu  | char(50)                 | YES  |     | NULL    |
    |
| bianma | int(6) unsigned zerofill | YES  |     | NULL    |
    |
| liexin | char(50)                 | YES  |     | NULL    |
    |
| weizhi | char(50)                 | YES  |     | NULL    |
    |
+--------+--------------------------+------+-----+---------+----------------+
5 rows in set (0.28 sec)
------------------------------------------------------------------

输入文件:
file ~/doc
/home/soj/doc: UTF-8 Unicode text

cat ~/doc  部分内容
283     碌?露镁路??酶   020179  ?庐?梅?赂?戮
露镁虏茫?梅?掳?酶
284     碌?露镁路??酶   020180  ??潞?碌煤路搂
露镁虏茫?梅?掳?酶
285     碌?露镁路??酶   020181  路?禄冒路搂
露镁虏茫?梅?掳?酶
286     碌?露镁路??酶   020182  路?禄冒路搂
露镁虏茫?梅?掳?酶

事先我用iconv将其转成了utf-8,在C中实在是不会,sigh~~~~

程序代码main.c:
[code]
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <errno.h>
//#include <sys/iconv.h>
//#include "/usr/src/sys/sys/iconv.h"
//#include "/usr/src/bin/csh/iconv.h"
#include "/usr/local/include/mysql/mysql.h"

int
main(int argc,char **argv)
{
    MYSQL           mysql;
    FILE            *fp;

    if( 2 != argc ){
        fprintf(stderr,"Usage:./prog inputfile\n");
        exit(-1);
    }

    if( NULL == (fp=fopen(argv[1],"r")) ){
        fprintf(stderr,"%s\n",strerror(errno));
        exit(-1);
    }
    fprintf(stdout,"file %s opend...\n",argv[1]);

    mysql_init(&mysql);

if(NULL==mysql_real_connect(&mysql,"localhost","zhongyi","localhost","ZhongYi",0,NULL,0)){
        fprintf(stderr,"Failed to connect to database: Error:
%s\n",mysql_error(&mysql));
        exit(-1);
    }
    fprintf(stdout,"DataBase Connected...\n");
    if( 0 != mysql_options(&mysql,MYSQL_SET_CHARSET_NAME,"utf8")){
        fprintf(stderr,"mysql_options Error:
%s\n",mysql_error(&mysql));
    }
    if( 0 != mysql_set_character_set(&mysql,"utf8") ){
        fprintf(stderr,"mysql_set_character_set Error:
%s\n",mysql_error(&mysql));
    }

    /*  --------------------------------- */
    /*  021     第一分区    010021  光电感烟    一层东后区
*/
    for(char buf[4096]; NULL != fgets(buf,4096,fp); ){
        /*
         * | fenqu  | char(30)
         * | bianma | int(6) unsigned zerofill
         * | liexin | char(30)
         * | weizhi | char(30)
         */
        char query[1024]="INSERT INTO zy(fenqu,bianma,liexin,weizhi)
VALUES('";
        char *iter_b,*iter_e;

        for(iter_b=buf; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"',");
        for(iter_b=iter_e; ' '==*iter_b; ++iter_b);
        for(iter_e=iter_b; ' '!=*iter_e; ++iter_e);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,",'");
        for(iter_b=iter_e; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"','");
        for(iter_b=iter_e; 0 < *iter_b; ++iter_b);
        for(iter_e=iter_b; 0 > *iter_e; iter_e+=2);
        strncat(query,iter_b,iter_e-iter_b);
        strcat(query,"')");

        /*  iconv */
        /*
        iconv_t   cd;
        char outbuf[1024];
        size_t in=strlen(query),out=1024;

        if( (iconv_t)-1 == (cd = iconv_open("UTF-8","GBK")) ){
            fprintf(stderr,"Iconv_open Error: %s\n",strerror(errno));
            exit(-1);
        }
        if( (size_t)-1 == iconv(cd,(char **)&query,(size_t *)&in,(char
**)&outbuf,(size_t *)&out) ){
            fprintf(stderr,"Iconv Eoor: %s\n",strerror(errno));
            exit(-1);
        }
        */

        if( mysql_real_query(&mysql,query,strlen(query)) ){
            fprintf(stderr,"Error making query:
%s\n",mysql_error(&mysql));
        }

        /*
        if( -1 == iconv_close(cd) ){
            fprintf(stderr,"Iconv_close Error: %s\n",strerror(errno));
            exit(-1);
        }
        */
    }

    fclose(fp);
    mysql_close(&mysql);

    exit(0);

}
[/code]
编译:

 gcc -std=c99 -L /usr/local/lib/mysql/ -lmysqlclient -I
/usr/local/include/mysql/ main.c -o sql

查看结果:
mysql> select * from zy;
+--------+----------+--------+----------+----------------+
| xuhao  | fenqu    | bianma | liexin   | weizhi         |
+--------+----------+--------+----------+----------------+
| 000001 | 第一分区 | 001001 | 光电感烟 | 二层东后区     |
| 000002 | 第一分区 | 001002 | 光电感烟 | 二层东后区     |
| 000003 | 第一分区 | 001003 | 光电感烟 | 二层东后区     |
| 000004 | 第一分区 | 001004 | 光电感烟 | 二层东后区     |
| 000005 | 第一分区 | 001005 | 光电感烟 | 二层东后区     |
| 000006 | 第一分区 | 001006 | 光电感烟 | 二层东后区     |
| 000007 | 第一分区 | 001007 | 光电感烟 | 二层东后区     |
| 000008 | 第一分区 | 001008 | 光电感烟 | 二层东后区     |
| 000009 | 第一分区 | 001009 | 光电感烟 | 二层东后区     |
.................................................................
| 000285 | 第二分区 | 020181 | 防火阀   | 二层西前区     |
| 000286 | 第二分区 | 020182 | 防火阀   | 二层西前区     |
+--------+----------+--------+----------+----------------+
286 rows in set (0.04 sec)

回复列表 (共1个回复)

沙发

谢谢楼主的分享
这对我们初学者非常有用

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