java 如何在JSP中检查两个字符串是否相等？
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时间：2020-11-03 04:17:55 来源:igfitidea点击:
How to check two strings are equal in JSP?
提问by dharan
how to check whether these two strings are equal in Java using if...else block.
如何使用 if...else 块在 Java 中检查这两个字符串是否相等。
String passw1=(String)request.getParameter("pass");
System.out.println("value of passw1"+passw1);
String passw2=(String)request.getParameter("pass1");
System.out.println("value of passw1"+passw2);
//String a=passw1;//String b=passw2;
if(passw1.equals(passw2))
{
out.println("Password matches");
回答by Jekin Kalariya
Scriplet accept java code so its simple like this
Scriplet 接受 java 代码，所以它像这样简单
<%
if(request.getParameter("pass")!=null && request.getParameter("pass1")!=null){
String passw1=(String)request.getParameter("pass");
String passw2=(String)request.getParameter("pass1");
if(passw1.equals(passw2)){
//equal
}
}
%>
Is it ok or you try to explain other thing?
可以吗，或者您尝试解释其他事情？
回答by yash
Use .equals()method to check equal String, and apply ==for values
使用.equals()方法检查相等String，并申请==值
<%
String passw1=(String)request.getParameter("pass");
System.out.println("value of passw1"+passw1); // if null let me know
String passw2=(String)request.getParameter("pass1");
System.out.println("value of passw2"+passw2); // if null let me know
if(passw1.equals(passw2)){ //both string match
//your logic
System.out.println("string match");
}
else{
System.out.println("string not match");
}
%>
