download下载文件

/**********************
*      好了，运行这段脚本完成文件下载并写到本地的操作
*      如果我们需要重复保存这个文件到本地，如何解决重名问题呢，下面这段代码可以随机生成文件名
*
*
*           char file[256]="\0";
*           char * chNumber 
*           chNumber=lr_eval_string("{Random}"); //生成随机数
*
*           strcat(file,"c:\\test");
*           strcat(file,chNumber);
*           strcat(file,".rar");
* 
*
************/

Action()
{


    int flen;        //定义一个整型变量保存获得文件的大小
    long filedes;    //保存文件句柄
    char file[256]="\0"; //保存文件路径及文件名
	char * chNumber;
	chNumber=lr_eval_string("{Random}"); //生成随机数



   
   web_set_max_html_param_len("2000000");//设置页面接收最大的字节数，该设置应大于下载文件的大小




	web_set_proxy ("127.0.0.1:8888");


    
	lr_start_transaction("getMenuDatashtml");

	//点击小房子
	web_url("EosMenuAction!getMenuData.shtml", 
		"URL=http://10.1.30.159:7013/aml/sysManage/EosMenuAction!getMenuData.shtml?_=1530072991152&alllifesessionid=0dca48cf-d4ff-41d5-b026-943beae2743b&jsonpcallback=jsonp1530072965162", 
		"TargetFrame=", 
		"Resource=1", 
		"RecContentType=application/json", 
		"Referer=http://10.1.30.159/portal/runtime/uiservice/menuTreeUIService.jsp", 
		"Snapshot=t27.inf", 
		LAST);
    
	lr_end_transaction("getMenuDatashtml", LR_AUTO);




	lr_start_transaction("downloadfileList_03");


	//<a href="/aml/reportfilemanage/ReportFile_downloadfile.shtml?repfile.pkid=50938">下载 </a>

    //关联下载文件的pkid，文件序号
	web_reg_save_param("file_content",
		"LB=ReportFile_downloadfile.shtml?repfile.pkid=",
		"RB=\">",
		LAST);

	//点击查询数据包状态已下载上报的
	web_submit_data("ReportFile_downloadfileList.shtml", 
		"Action=http://10.1.30.159:7013/aml/reportfilemanage/ReportFile_downloadfileList.shtml", 
		"Method=POST", 
		"TargetFrame=listFrame", 
		"RecContentType=text/html", 
		"Referer=http://10.1.30.159:7013/aml/reportfilemanage/ReportFile_enterModelCondition.shtml?to=downloadfile", 
		"Snapshot=t33.inf", 
		"Mode=HTML", 
		ITEMDATA, 
		"Name=repcon.repStatus", "Value=5", ENDITEM, 
		"Name=repcon.startDate", "Value=", ENDITEM, 
		"Name=reppackagefile.pkgType", "Value=", ENDITEM, 
		"Name=reppackagefile.repType", "Value=", ENDITEM, 
		"Name=repcon.endDate", "Value=", ENDITEM, 
		"Name=reppackagefile.status", "Value=p02", ENDITEM, 
		"Name=reppackagefile.trantDate", "Value=", ENDITEM, 
		EXTRARES, 
		"Url=ReportFile_downloadfile.shtml?repfile.pkid={file_content}", ENDITEM, 
		LAST);

	lr_end_transaction("downloadfileList_03",LR_AUTO);


	//关联服务器全部下载返回的内容
    web_reg_save_param("filecontent",
          "LB=",
          "RB=",
          "Search=ALL",
          LAST);

	//关联服务器响应的头文件中获取下载文件名
    web_reg_save_param("file","LB=filename=","RB=\r","Search=ALL",LAST);
	lr_start_transaction("download_04");

	web_url("下载", 
		"URL=http://10.1.30.159:7013/aml/reportfilemanage/ReportFile_downloadfile.shtml?repfile.pkid={file_content}", 
		"TargetFrame=", 
		"Resource=0", 
		"RecContentType=application/x-download", 
		"Referer=http://10.1.30.159:7013/aml/reportfilemanage/ReportFile_downloadfileList.shtml", 
		"Snapshot=t34.inf", 
		"Mode=HTML", 
		LAST);

	lr_end_transaction("download_04",LR_AUTO);

    strcat(file,"C:\\test\\");    //将“c：\\”这个路径保存到file中
    strcat(file,lr_eval_string("{file}"));//将获得的文件名拼接在file这个变量字符串之后
    flen = web_get_int_property(HTTP_INFO_DOWNLOAD_SIZE); //获得文件返回大小

      if(flen > 0)
         {
            if((filedes = fopen(file, "wb")) == NULL)
             {
              lr_output_message("Open File Failed!", lr_eval_string("{filecontent}"));
              return -1;

           }
             fwrite( lr_eval_string("{filecontent}"),flen,1,filedes );
             fclose( filedes );
        }


	return 0;
}