Request forwarding JSP: difference between forward and sendredirect

 

JSP: difference between forward and sendredirect

Response. sendredirect ():

 

Index. jsp

<%out.println("aaaaaaaaaaaaa");response.sendRedirect("/Forward_sendRedirect/Jsp1.jsp?name=ken");out.println(".....");%>

 

TranslatedAfter index_jsp.java:

......................

 try {      response.setContentType("text/html");      pageContext =_jspxFactory.getPageContext(this, request, response,                null, true, 8192, true);      _jspx_page_context = pageContext;      application =pageContext.getServletContext();      config = pageContext.getServletConfig();      session = pageContext.getSession();      out = pageContext.getOut();      _jspx_out = out;  out.println("aaaaaaaaaaaaa");response.sendRedirect("/Forward_sendRedirect/Jsp1.jsp?name=ken");out.println("....."); } catch (java.lang.Throwable t)

........................

 

 

 

<JSP: forwardpage = ""/>

Index. jsp:

 
After being translated into index_jsp.java:
......................

try {      response.setContentType("text/html");      pageContext =_jspxFactory.getPageContext(this, request, response,                null, true, 8192, true);      _jspx_page_context = pageContext;      application =pageContext.getServletContext();      config = pageContext.getServletConfig();      session = pageContext.getSession();      out = pageContext.getOut();      _jspx_out = out;       out.write("

 
 
 
<JSP: Forward page ="Jsp1.jsp"/>
It is equivalent:
_ Jspx_page_context.forward ("jsp1.jsp ");
Return;

About parameter transfer:
Http: // localhost: 8080/forward_sendredirect/index. jsp? Name = Ken
After a jump, it is equivalent to accessing
Http: // localhost: 8080/forward_sendredirect/jsp1.jsp? Name = Ken
The parameter used to access index. jsp is passed to the target jsp1.jsp.
Response. sendredirect () is not acceptable.
 
Reference of shangxuetang: