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<center>
<jsp: useBean id = "listInformation" scope = "page" class = "com.yourcompany.struts.operation.ListInformation"> </ jsp: useBean>
<TABLE border = "1" width = 550 cellspacing = "0" cellpadding = "0" bordercolor = "# CCCCCC" bgcolor = "# CCCCCC" style = "TABLE-LAYOUT: fixed">
<TR bgcolor = "# 9999CC">
<TD align = center colspan = 3 height = 40> Please Enter Your Name And Your College </ TD>
</ TR>
<TR bgcolor = "# 9999CC">
<TD align = center>
<TABLE border = "1" width = "100%" height = "100%" cellspacing = "0" cellpadding = "3" frame = "void"
bordercolor = "# CCCCCC" bgcolor = "# CCCCCC" style = "TABLE-LAYOUT: fixed">
<TR> <TD align = center width = "30%" height = 40> Name </ TD> </ TR>
<logic: iterate id = "element" name = "listInformation" property = "nameList">
<TR bgcolor = "# FFFFFF">
<TD align = center height = "40">
<bean: write name = "element" />
</ TD>
</ TR>
</ logic: iterate>
</ TABLE>
</ TD>
<TD align = center colspan = 2>
<TABLE border = "1" width = "100%" height = "100%" cellspacing = "0" cellpadding = "3" frame = "void"
bordercolor = "# CCCCCC" bgcolor = "# CCCCCC" style = "TABLE-LAYOUT: fixed">
<TR bgcolor = "# FFFFFF">
<TD align = center width = "70%" height = 40 bgcolor = "# CCCCCC"> College </ TD>
<TD align = center height = 40 colspan = 2 bgcolor = "# CCCCCC"> Administrate </ TD>
</ TR>
<logic: iterate id = "element" name = "listInformation" property = "collegeList">
<TR bgcolor = "# FFFFFF">
<TD align = center height = "40" width = "70%">
<!-bean: write name = "element" /->
<bean: write name = 'element' />
</ TD>
<TD width = "15%">
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<html: link action = "/ http2? method = delete&college = '<bean: write name =" element "/>'"> delete </ html: link>
<TD width = "15%"> <html: link action = "/ http2? Method = modify"> modify </ html: link> </ TD>
</ TR>
</ logic: iterate>
</ TABLE>
</ TD>
</ TR>
</ TABLE>
Problem 1: <html: link action = "/ http2? Method = delete&college = '<bean: write name =" element "/>'"> delete </ html: link> /> As a parameter, but the page prompts an error when writing as above.Is there any correct way to make the value of college be the property value of the bean
The struts-config.xml configuration file is as follows
<? xml version = "1.0" encoding = "UTF-8"?>
<! DOCTYPE struts-config PUBLIC "-// Apache Software Foundation // DTD Struts Configuration 1.1 // EN" "http://jakarta.apache.org/struts/dtds/struts-config_1_1.dtd">
<struts-config>
<data-sources />
<form-beans>
<form-bean name = "http2Form" type = "com.yourcompany.struts.form.Http2Form" />
</ form-beans>
<global-exceptions />
<global-forwards>
<forward name = "add" path = "/ form / add.jsp" />
<forward name = "delete" path = "/ form / delete.jsp" />
<forward name = "modify" path = "/ form / modify.jsp" />
</ global-forwards>
<action-mappings>
<action
attribute = "http2Form"
input = "/ form / http2.jsp"
name = "http2Form"
path = "/ http2"
parameter = "method"
scope = "request"
type = "com.yourcompany.struts.action.Http2Action" />
</ action-mappings>
<message-resources parameter = "com.yourcompany.struts.ApplicationResources" />
</ struts-config>
Question 2: Rewrite the above <html: link as <a href = "/ http2? Method = delete&college = <bean write name =" element "/>"> delete </a>
After submitting, the delete method of DispatchAction is not executed, but connected to other pages.
May I ask what is the cause?
// Created by MyEclipse Struts
// XSL source (default): platform: /plugin/com.genuitec.eclipse.cross.easystruts.eclipse_3.8.3/xslt/JavaClass.xsl
package com.yourcompany.struts.action;
import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.FileReader;
import java.io.IOException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.struts.actions.DispatchAction;
import org.apache.struts.action.ActionForm;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import com.yourcompany.struts.form.Http2Form;
/ **
* MyEclipse Struts
* Creation date: 01-02-2007
*
* XDoclet definition:
* @struts: action path = "/ http2" name = "http2Form" input = "/ form / http2.jsp" scope = "request" validate = "true"
* /
public class Http2Action extends DispatchAction {
// ------------------------------------------------ --------- Instance Variables
// ------------------------------------------------ --------- Methods
/ **
* Method execute
* @param mapping
* @param form
* @param request
* @param response
* @return ActionForward
* /
public ActionForward add (
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
System.out.println ("in method add");
Http2Form httpForm = (Http2Form) form;
String str = "";
if (httpForm.getCollege ()! = null) {
try {
BufferedReader in = new BufferedReader (new FileReader ("e: /temp/DataFactory.txt"));
int counter = 0;
String strLine;
while ((strLine = in.readLine ())! = null) {
str + = strLine + "\r\n";
counter ++;
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}
if (counter == 0)
counter = 1;
String strFirst = counter + ":" + httpForm.getName () + "-" + httpForm.getCollege () + "\r\n";
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FileOutputStream out = new FileOutputStream ("e: /temp/DataFactory.txt");
String newStr = strFirst + str;
out.write (newStr.getBytes ());
out.flush ();
out.close ();
} catch (FileNotFoundException e) {
e.printStackTrace ();
} catch (IOException e1) {
e1.printStackTrace ();
}
}
//if(httpForm.getName()!=null)
// return (mapping.findForward ("list"));
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return (mapping.findForward ("add"));
}
public ActionForward delete (
ActionMapping mapping,
ActionForm form,
HttpServletRequest request,
HttpServletResponse response) {
System.out.println ("in the method delete from <html: linkddddd");
Http2Form httpForm = (Http2Form) form;
//request.setAttribute("form",httpForm);
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System.out.println (httpForm.getCollege () + "college");
return (mapping.findForward ("remove"));
}
} |
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China
Post time: 2020-1-16 11:40:01
Author