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<form action="sendMsg.action?senderId=${users.id }&username=${users.username}" method="post"
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private String userId; //setter getter·½·¨ÂÔ
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public String sendMsg() throws Exception{
String username = ServletActionContext.getRequest().getParameter("username"); //»ñÈ¡Óû§Ãû
String t[] = ServletActionContext.getRequest().getParameterValues("userId"); //ÕâÀï»ñȡʱ£¬±äÁ¿Ãû¾ÍÖ±½ÓдjspÒ³ÃæµÄ¾ÍÐС£
System.out.println(t[0]); //²âÊÔÊä³ö³É¹¦
System.out.println(t[1]);


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