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//searchservlet.java
<form action = ChooseServlet>
....
<input type=submit name=action value=imageview>;
<input type=submit name=action value=update>;
<input type=submit name=action value=delete>;
</form>
ÇϳªÀÇ form tag¿¡ ¿©·¯°³ÀÇ submit ¹öÆ°À» µÎ¾ú½À´Ï´Ù.


//ChooseServlet.java


String action = req.getParameter("action");
if(action=="imageview")
{
String imageurl = new String("http://9.184.117.97:8080/servlet/ImageServlet);
res.sendRedirect(imageurl);
}
else if(action=="update")
{
String updateurl = new String("http://9.184.117.97:8080/servlet/UpdateServlet);
res.sendRedirect(updateurl);
}
else if(action=="delete")
{
String deleteurl = new String("http://9.184.117.97:8080/servlet/DeleteServlet);
res.sendRedirect(deleteurl);
}

À§¿¡¼­ actionÀº ChooseServletÀ» ºÎ¸£´Â servletÀÇ submit buttonÀÇ name ÀÔ´Ï´Ù.
submit buttonÀÇ value¿¡ µû¶ó¼­ ¼­·Î ´Ù¸¥ ¼­ºí¸´À¸·Î °¡°Ô²û ChooseServletÀ» ¸¸µé¾ú´Âµ¥ ChooseServletÀ» ºÎ¸£´Â submit buttonÀÇ value´Â ¸Â°Ô °¡Á®¿À´Âµ¥ value°ªÀ» ºñ±³ÇÏ´Â if¹® À¸·Î´Â °¡Áú ¾Ê´Â±º¿ä..
À§ ChooseServelt.javaÀÇ ¼Ò½º¿¡¼­ º¸¸é String actionÀÇ °ªÀ» È­¸é¿¡ Ãâ·ÂÇÏ¸é ¹öÆ°ÀÇ value¿¡ µû¶ó¼­ insert,update, delete ¸Â°Ô °¡Á®¿À°Åµç¿ä,,
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action¿¡ ´Ù¸¥ °ªÀÌ µé¾î°¡´Â°Íµµ ¾Æ´Ñµ¥..
action.trim()µµ ÇØÁÖ¾ú´Âµ¥..
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