What is the jsp script?

JSP script is also called java script. It is actually a Java code fragment, which refers to the java script in the jsp page enclosed by "<%%>"; all codes that can be executed in the java program are Can be executed through jsp script. JSP scripts are divided into three types: "<%...%>", "<%=...%>", "<%!...%>".

JSP (Java Server Pages) is a dynamic resource on the JavaWeb server side. It has the same function as the html page, which is to display data and obtain data.

Composition of jsp: JSP = html Java script (code snippet) JSP dynamic tag

jsp script: also called java script in some places, refers to enclosed by <%%> java script in jsp page. All codes that can be executed in java programs can be executed through jsp scripts.

JSP script is a Java code snippet, which is divided into three types:

• ##<%...%>: Java statement;

• <%=…%>: Java expression;

• <%!...%>: Java definition Class members;

#Variables defined in jsp scripts can also be used in jsp output expressions. For example:

<!-- 下面是JSP声明部分 -->
<%!
public int count;
public String info()
{ return "hello";}
%>
<%
Integer i=10；
out.println(count++);
%>
<%
out.println(info());
%>
<%=count++%>
<%=info()%>
<%=i%>

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