使用loadrunner进行压力测试之----post请求

来源：互联网发布：c语言生日快乐编辑：程序博客网时间：2024/06/10 06:17

1. 发送post请求时使用web_submit_data

如：

 1 web_submit_data("create",//事务名  2           "Action=http://bizhi.sogou.com/diy/", //请求域名 3           "Method=POST", //请求类型为post 4           "RecContentType=application/json", //返回格式为json 5           "Referer=http://bizhi.sogou.com/diy?wp_id=8743", 6           "Snapshot=t4.inf", 7           "Mode=HTML", 8           ITEMDATA, //下面编辑post请求的数据 9           "Name=img", "Value=http://dl.bizhi.sogou.com/images/2012/05/3/8743.jpg", ENDITEM, //数据的name、value及结束符10           "Name=left", "Value=60", ENDITEM, //第二条数据的name、value及结束符11           "Name=top", "Value=30", ENDITEM,12           "Name=width", "Value=720", ENDITEM,13           "Name=height", "Value=450", ENDITEM,14           "Name=model", "Value=5/5s", ENDITEM,15           "Name=x", "Value=1", ENDITEM,16           "Name=y", "Value=1", ENDITEM,17           "Name=ofc", "Value=1", ENDITEM,18           "Name=wp_id", "Value=8743", ENDITEM,19           "Name=mat", "Value=ms", ENDITEM,20           "Name=curMode", "Value=normal", ENDITEM,21           LAST);

2. 如果要发送的请求的数据值需要变化，那么需要将请求中的值参数化，，如果是根据上一条请求的返回值来确定请求中的数据值，那么需要对上一条请求的返回值进行解析

如：

 1 web_submit_data("create", 2           "Action=http://bizhi.sogou.com/diy/", 3           "Method=POST", 4           "RecContentType=application/json", 5           "Referer=http://bizhi.sogou.com/diy?wp_id=8743", 6           "Snapshot=t4.inf", 7           "Mode=HTML", 8           ITEMDATA, 9           "Name=img", "Value=http://dl.bizhi.sogou.com/images/2012/05/3/8743.jpg", ENDITEM,10           "Name=left", "Value=60", ENDITEM,11           "Name=top", "Value=30", ENDITEM,12           "Name=width", "Value=720", ENDITEM,13           "Name=height", "Value=450", ENDITEM,14           "Name=model", "Value=5/5s", ENDITEM,15           "Name=x", "Value=1", ENDITEM,16           "Name=y", "Value=1", ENDITEM,17           "Name=ofc", "Value=1", ENDITEM,18           "Name=wp_id", "Value=8743", ENDITEM,19           "Name=mat", "Value=ms", ENDITEM,20           "Name=curMode", "Value=normal", ENDITEM,21           LAST);//请求122 23      lr_set_debug_message( 16 | 2,0 );24      lr_save_string((char*)strtok(lr_eval_string("{Output}"),","),"temp");//获得请求1的返回数据25      //lr_output_message("bian:%s",lr_eval_string("{temp}"));26      lr_save_string((char*)strtok(NULL,","),"diyid_temp");//解析返回数据27      //lr_output_message("bian2:%s",lr_eval_string("{diyid_temp}"));28      lr_save_string((char*)strtok(lr_eval_string("{diyid_temp}"),":"),"temp");//解析返回数据29      //lr_output_message("bian:%s",lr_eval_string("{temp}"));30      lr_save_string((char*)strtok(NULL,":"),"diyid_temp");//解析返回数据31      //lr_output_message("bian2:%s",lr_eval_string("{diyid_temp}"));32      diyid_str=(char*)strtok(lr_eval_string("{diyid_temp}"),"}");33      lr_save_string((char*)strtok(lr_eval_string("{diyid_temp}"),"}"),"diyid");//解析返回数据34      //lr_output_message("bian:%s",lr_eval_string("{diyid}"));35 36      strcat(test, diyid_str);37      //lr_output_message("%s",test);38      lr_save_string(CMd5(test),"md5");//计算md539      //lr_output_message("bianmd5:%s",lr_eval_string("{md5}"));40 41 42      web_submit_data("postname",43                 "Action=http://bizhi.sogou.com/orderpay/",44                 "Method=POST",45                 "RecContentType=textml",46                 "Mode=HTML",47                 ITEMDATA,48                 "Name=goods_action","Value=goods_detail",ENDITEM,49                     "Name=goods_addr","Value=656",ENDITEM,50                     "Name=md5str","Value={md5}",ENDITEM,//根据参数构造请求51                     "Name=diy_id","Value={diyid}",ENDITEM,//根据参数构造请求52                     "Name=goods_info","Value=448_1",ENDITEM,53                     "Name=from","Value=diy",ENDITEM,54                     "Name=Accept","Value=text/plain",ENDITEM,55                 LAST);

3. 另附，计算md5，需要添加md5的头文件，并别忘了在gloab.h中include md5.h

  1 #ifndef MD5_H  2 #define MD5_H  3 #ifdef __alpha  4 typedef unsigned int uint32;  5 #else  6 typedef unsigned long uint32;  7 #endif  8 struct MD5Context {  9         uint32 buf[4]; 10         uint32 bits[2]; 11         unsigned char in[64]; 12 }; 13 extern void MD5Init(); 14 extern void MD5Update(); 15 extern void MD5Final(); 16 extern void MD5Transform(); 17 typedef struct MD5Context MD5_CTX; 18 #endif 19 #ifdef sgi 20 #define HIGHFIRST 21 #endif 22 #ifdef sun 23 #define HIGHFIRST 24 #endif 25 #ifndef HIGHFIRST 26 #define byteReverse(buf, len)    /* Nothing */ 27 #else 28 void byteReverse(buf, longs)unsigned char *buf; unsigned longs; 29 { 30     uint32 t; 31     do { 32     t = (uint32) ((unsigned) buf[3] << 8 | buf[2]) << 16 |((unsigned) buf[1] << 8 | buf[0]); 33     *(uint32 *) buf = t; 34     buf += 4; 35     } while (--longs); 36 } 37 #endif 38 void MD5Init(ctx)struct MD5Context *ctx; 39 { 40     ctx->buf[0] = 0x67452301; 41     ctx->buf[1] = 0xefcdab89; 42     ctx->buf[2] = 0x98badcfe; 43     ctx->buf[3] = 0x10325476; 44     ctx->bits[0] = 0; 45     ctx->bits[1] = 0; 46 } 47 void MD5Update(ctx, buf, len) struct MD5Context *ctx; unsigned char *buf; unsigned len; 48 { 49     uint32 t; 50     t = ctx->bits[0]; 51     if ((ctx->bits[0] = t + ((uint32) len << 3)) < t) 52     ctx->bits[1]++; 53     ctx->bits[1] += len >> 29; 54     t = (t >> 3) & 0x3f; 55     if (t) { 56     unsigned char *p = (unsigned char *) ctx->in + t; 57     t = 64 - t; 58     if (len < t) { 59         memcpy(p, buf, len); 60         return; 61     } 62     memcpy(p, buf, t); 63     byteReverse(ctx->in, 16); 64     MD5Transform(ctx->buf, (uint32 *) ctx->in); 65     buf += t; 66     len -= t; 67     } 68     while (len >= 64) { 69     memcpy(ctx->in, buf, 64); 70     byteReverse(ctx->in, 16); 71     MD5Transform(ctx->buf, (uint32 *) ctx->in); 72     buf += 64; 73     len -= 64; 74     } 75     memcpy(ctx->in, buf, len); 76 } 77 void MD5Final(digest, ctx) 78     unsigned char digest[16]; struct MD5Context *ctx; 79 { 80     unsigned count; 81     unsigned char *p; 82     count = (ctx->bits[0] >> 3) & 0x3F; 83     p = ctx->in + count; 84     *p++ = 0x80; 85     count = 64 - 1 - count; 86     if (count < 8) { 87     memset(p, 0, count); 88     byteReverse(ctx->in, 16); 89     MD5Transform(ctx->buf, (uint32 *) ctx->in); 90     memset(ctx->in, 0, 56); 91     } else { 92     memset(p, 0, count - 8); 93     } 94     byteReverse(ctx->in, 14); 95     ((uint32 *) ctx->in)[14] = ctx->bits[0]; 96     ((uint32 *) ctx->in)[15] = ctx->bits[1]; 97     MD5Transform(ctx->buf, (uint32 *) ctx->in); 98     byteReverse((unsigned char *) ctx->buf, 4); 99     memcpy(digest, ctx->buf, 16);100     memset(ctx, 0, sizeof(ctx));101 }102 #define F1(x, y, z) (z ^ (x & (y ^ z)))103 #define F2(x, y, z) F1(z, x, y)104 #define F3(x, y, z) (x ^ y ^ z)105 #define F4(x, y, z) (y ^ (x | ~z))106 #define MD5STEP(f, w, x, y, z, data, s) ( w += f(x, y, z) + data,  w = w<<s | w>>(32-s),  w += x )107 void MD5Transform(buf, in)108     uint32 buf[4]; uint32 in[16];109 {110     register uint32 a, b, c, d;111     a = buf[0];112     b = buf[1];113     c = buf[2];114     d = buf[3];115     MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);116     MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);117     MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);118     MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);119     MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);120     MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);121     MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);122     MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);123     MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);124     MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);125     MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);126     MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);127     MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);128     MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);129     MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);130     MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);131     MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);132     MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);133     MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);134     MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);135     MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);136     MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);137     MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);138     MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);139     MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);140     MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);141     MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);142     MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);143     MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);144     MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);145     MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);146     MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);147     MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);148     MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);149     MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);150     MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);151     MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);152     MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);153     MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);154     MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);155     MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);156     MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);157     MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);158     MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);159     MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);160     MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);161     MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);162     MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);163     MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);164     MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);165     MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);166     MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);167     MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);168     MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);169     MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);170     MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);171     MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);172     MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);173     MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);174     MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);175     MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);176     MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);177     MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);178     MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);179     buf[0] += a;180     buf[1] += b;181     buf[2] += c;182     buf[3] += d;183 }184 char* CMd5(const char* s)185 {186      struct MD5Context md5c;187      unsigned char ss[16];188      char subStr[3],resStr[33];189      int i;190      MD5Init( &md5c );191      MD5Update( &md5c, s, strlen(s) );192      MD5Final( ss, &md5c );193      strcpy(resStr,"");194      for( i=0; i<16; i++ )195      {196          sprintf(subStr, "%02x", ss[i] );197          itoa(ss[i],subStr,16);198          if (strlen(subStr)==1) {199              strcat(resStr,"0");200          }201          strcat(resStr,subStr);202      }203      strcat(resStr,"\0");204      return resStr;205 }

4. 如果一个action中有两个请求，那么压测是看到的响应时间曲线是两个请求综合的响应时间，如果要区分每个请求的响应时间，可加入请求开始/结束标记

1 lr_start_transaction(“create”);//插入结束标记，从此结束计时2 lr_end_transaction(“create”, LR_AUTO);//插入结束标记，从此结束计时

转自：51testing论坛

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