The code of method … is exceeding the 65535 bytes limit

问题

Inside a jsp I have a small header :

<%@ page import="java.util.*"%>

<% HttpSession CurrentSession =
 request.getSession();
 ...
%>

...and a big html

<html>
...
</html>

If I try to read it as is I get an error of "...is exceeding the 65535 bytes limit".I have to break it up.Since I am new to java I cannot figure it out how to do it.Could you please indicate me the way?

回答1:

The JSP is converted into a normal Servlet java source, and some generated method is too large, as there is a 64 KB limit (on the byte code) on method lengths.

If possible change static includes (really embedding an other JSP source) with dynamic includes.

The solution (and probably good style) is too introduce a couple of methods into which pieces of the general code is moved. For instance to generate a HTML table row with <tr>:

<%@

    void tableRow(String... cellValues) {
        %><tr><%
           for (String cellValue : cellValues) {
               %>  <td><%= cellValue %></td>
  <%
           }
        %></tr>
  <%
    }
%>

...

<%
    tableRow("one", "unu", "un");
    tableRow("two", "du", "deux");
    tableRow("three", "tri", "trois");
%>

P.S. The above method is too small scale to save much, taking a large piece and create a method like createResultsTable is more effective.

回答2:

JSPs get compiled into servlet code, which are then compiled into actual java .class files. JSP code will be put into one big doGet() method, and if your JSP file is really big, it will hit the method size limit of 65535. The limit is coming from JVM specification ("The value of the code_length item must be less than 65536").

You should split the file into several files. I wouldn't split it into different methods as proposed in this thread, since it can make the code logic even more complex in this case, but do a jsp:include for the HTML part(s) like proposed by McDowell.

回答3:

The <jsp:include page="foo.html" %> standard action can be used to include content at runtime - see some random documentation.

来源：https://stackoverflow.com/questions/16294505/the-code-of-method-is-exceeding-the-65535-bytes-limit

标签

java

jsp

.class-file