LR脚本实战：文本检查点web_reg_find和web_find两个函数的区别
web_reg_find是先注册(register)后查找的；使用时将它放在请求语句的前面。 而web_find是查找前面的请求结果；使用时将它放在请求语句的后面。
另二者的参数也完成不一样的，web_reg_find参数中SaveCount记录查找匹配的次数， web_find的机制是一旦查找匹配成功就立即返回，并不继续查找和记录匹配次数
再者Run-time设置中的“enable image and text check”对web_find有效，而对web_reg_find无效。 注意：web_find不支持URL模式下录制的脚本。
执行效率： web_reg_find可以直接在内存里面检查所指定对象是否存在；而web_find是文本检查点，需要对应页面完全显示出来之后，才会执行检查。概言之，使用web_reg_find不用启用文本检查点功能；使用web_find就一定要启用文本检查点功能，否则检查点无效。 很显然，前者比后者执行效率要高，这也是LR要不建议使用后者的原因。
| 以下是转海龙老师的 而web_reg_find()就不能通过它的返回值来作为事务的判断条件，因为web_reg_find()的返回值0和1表示web_reg_find()是否注册成功（web_reg_find是注册类型函数，它本身并不执行），并不代表查找的内容是否存在，也就是说无论查找的文本内容是否存在，都返回0,(和web_find的返回值意义就不同了)。 我想问的是有什么方法用web_reg_find()来作为事务的判断条件？ 利用web_reg_find创建的参数SaveCount ，作为判断条件就可以了（如SaveCount >0） web_find()（帮助不太推荐使用web_find而是推荐使用web_reg_find)要写在请求后，也就是要在事务内了。这样通过事务统计出来的响应时间就（包括了web_find()这个函数的执行时间）不真实了。而web_reg_find()是写在请求前面的。如果能用web_reg_find()来作为事务结束条件，那就是最好的. 事务时间等于Duration－Wasted Time，web_reg_find执行的时间Loadrunner会自动减掉的 |
另，LR自身已经提供了关于Page title的检查点的设置。路径： Recording setting >Advanced. 
脚本示例：
同样的script, 如果添加web_reg_find，事务运行结果失败：
Action.c(50): Error -26366: “Text=Dashboard” not found for web_reg_find [MsgId: MERR-26366]
Action.c(50): web_submit_form(“wp-login.php_2”) highest severity level was “ERROR”, 39882 body bytes, 3207 header bytes, 12 chunking overhead bytes [MsgId: MMSG-26387]
Action.c(50): Notify: Transaction “Login_WordPress” ended with “Fail” status (Duration: 5.9267 Wasted Time: 0.0000).
Ending action Action.
Ending iteration 2. 而如果没有同，整个事务，包括 action运行成功：
Action.c(110): web_url(“index-extra.php_5”) was successful, 1047 body bytes, 2682 header bytes, 12 chunking overhead bytes [MsgId: MMSG-26385]
Action.c(124): Log on successfully
Ending action Action.
Ending iteration 2.
Action(){ int status; //定义变量，用于判断登陆是否成功// web_add_cookie(“rtime=1; DOMAIN=bjdns2.cncmax.cn”);//// web_add_cookie(“ltime=1303876351121; DOMAIN=bjdns2.cncmax.cn”);//// web_add_cookie(“cnzz_eid=64563578-1302487037-http://bjdns2.cncmax.cn:8080/?HOST=home.beyondsoft.com&R=/& DOMAIN=bjdns2.cncmax.cn”);//// web_add_cookie(“JSESSIONID=E73D3BF7B18442F72B93F5EF37B5E545; DOMAIN=bjdns2.cncmax.cn”); web_url(“bjdns2.cncmax.cn:8080″,”URL=http://bjdns2.cncmax.cn:8080/?HOST=wpad.beyondsoft.com&R=/wpad.dat&”,”Resource=0″,”RecContentType=text/html”,”Referer=”,”Snapshot=t1.inf”,”Mode=HTML”,LAST); // web_add_cookie(“wp-settings-time-1=1304042778; DOMAIN=demo.opensourcecms.com”);//// web_add_cookie(“wordpress_test_cookie=WP+Cookie+check; DOMAIN=demo.opensourcecms.com”);//// web_add_cookie(“wordpress_logged_in_613541581fd3dd54ee5153849996d0f6=admin|1304215578|8148fb498981bf15c2f239b9d3dbdf5d; DOMAIN=demo.opensourcecms.com”);//// web_add_cookie(“wordpress_613541581fd3dd54ee5153849996d0f6=admin|1304215578|616ad0d48cfd28158b012254e00fe732; DOMAIN=demo.opensourcecms.com”);//web_url(“wp-login.php”,”URL=http://demo.opensourcecms.com/wordpress/wp-login.php”,”Resource=0″,”RecContentType=text/html”,”Referer=”,”Snapshot=t2.inf”,”Mode=HTML”,EXTRARES,”URL=wp-admin/images/button-grad.png”, ENDITEM,”URL=wp-admin/images/white-grad.png”, ENDITEM,”URL=wp-admin/images/logo-login.gif”, ENDITEM,LAST); lr_start_transaction(“Login_WordPress”); // 注意，该函数应该插入到提交时会出现该字段的地方之前。 //web_reg_find(“Text=Dashboard”, // “Search=Body”, // LAST);web_submit_form(“wp-login.php_2″,”Snapshot=t3.inf”,ITEMDATA,”Name=log”, “Value={UserName}”, ENDITEM,”Name=pwd”, “Value={Password}”, ENDITEM,”Name=rememberme”, “Value=<OFF>”, ENDITEM,”Name=wp-submit”, “Value=Log In”, ENDITEM,EXTRARES,”URL=wp-admin/images/wp-logo.png?ver=20100531″, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/fav-arrow.gif?ver=20100531″, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/menu.png?ver=20100531″, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/menu-bits.gif?ver=20100610″, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/menu-dark.gif”, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/menu-arrows.gif”, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/screen-options-toggle.gif?ver=20100531″, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/icons32.png?ver=20100531″, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/gray-grad.png”, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-includes/js/thickbox/loadingAnimation.gif”, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,”URL=wp-admin/images/fade-butt.png”, “Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”, ENDITEM,LAST); lr_end_transaction(“Login_WordPress”, LR_AUTO); web_url(“index-extra.php”,”URL=http://demo.opensourcecms.com/wordpress/wp-admin/index-extra.php?jax=dashboard_incoming_links”,”Resource=0″,”RecContentType=text/html”,”Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”,”Snapshot=t4.inf”,”Mode=HTML”,LAST); web_url(“index-extra.php_2″,”URL=http://demo.opensourcecms.com/wordpress/wp-admin/index-extra.php?jax=dashboard_primary”,”Resource=0″,”RecContentType=text/html”,”Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”,”Snapshot=t5.inf”,”Mode=HTML”,LAST); web_url(“index-extra.php_3″,”URL=http://demo.opensourcecms.com/wordpress/wp-admin/index-extra.php?jax=dashboard_secondary”,”Resource=0″,”RecContentType=text/html”,”Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”,”Snapshot=t6.inf”,”Mode=HTML”,LAST); web_url(“index-extra.php_4″,”URL=http://demo.opensourcecms.com/wordpress/wp-admin/index-extra.php?jax=dashboard_plugins”,”Resource=0″,”RecContentType=text/html”,”Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”,”Snapshot=t7.inf”,”Mode=HTML”,LAST); web_url(“index-extra.php_5″,”URL=http://demo.opensourcecms.com/wordpress/wp-admin/index-extra.php?jax=dashboard_quick_press”,”Resource=0″,”RecContentType=text/html”,”Referer=http://demo.opensourcecms.com/wordpress/wp-admin/”,”Snapshot=t8.inf”,”Mode=HTML”,LAST); if(status == LR_FAIL) {lr_error_message(“Log on failed”);return -1;}else{lr_output_message(“Log on successfully”);return 0;} }
