Two different ways
First, configure directly in the spring configuration file Applictioncontext
Second, separate dwr.xml file configuration
Test class:
Package com.test; public class Test {public string test (string name) {System.out.println ("---------"), return "Hello" + name + "!!!!!"; } }
The first way:
Applicationcontext.xml
DWR Forwarding with Org.directwebremoting.spring.DwrSpringServlet
Xml
Second Kind
Applicationcontext.xml (as with
1. PrefaceDWR provides a spring creator, and once the spring creator is used, DWR will be responsible for searching the spring container in the Web app and converting the beans in the SPRINGP container into a browser-callable object.2. Creating Java ClassesBelow we create a simple server processing class that will be configured in the Spring container.Package com.owen.dwr.dwr;/** * Server Processing class * @author owenwilliam 2016-5-8 * @version 1.0
Yesterday when using DWR encountered a session error error, after Google, in a foreigner's forum to see a solution,is configured in Web. Xml as follows:There's no problem with this addition.DWR Session Error
The options in it are determined by the In the dwrutil package in DWR, two methods are provided for real-timeThe two methods are:Dwrutil. removealloptions (P1); // P1 is select element IDDwrutil. addoptions (P1, P2); // P1 is select element ID, P2 is Int or string Arrays
For example:Page ElementsFunction Update (){Demo. getnumbers (createlist, $ ("bigselect"). Checked );}
// Callback functionFunction createlist (data){Dwrutil. removealloptions ("numli
Nowadays, ssh combinations are widely used in Java EE applications, and Ajax technologies are everywhere. We generally use struts compliant with the MVC design pattern to regulateProgramStructure, use the excellent ORM Component hibernate to simplify database access operations, use the system adhesive spring to improve development efficiency, and use Ajax for asynchronous access to improve user experience. Today, a demo is a simplified HRMS (Human Resource Management System). On SSH, spring has
First talk about annotation syntax, save dwr.xml. (Since Java 5, now the more I look at a heap of configuration files more annoying, more and more like the annotation method directly simple)
First download the latest stable version of the Dwr.jar file into your project. (Do you need anything else?) No need, DWR is so simple.
Then add the following paragraph to the Web.xml
Org.relax.service.SectionManager, Org.relax.service
Recently, there are projects to do this kind of server push function, in Baidu search for a long time many are using sockets or related framework to achieve, and my project is Js+java implementation of the system, originally wanted to use Websocket+mina to do it, tried half a day to do a good deal of trouble, decisively give up, continue to find, Later found DWR, browse the relevant data feel is good, simple configuration can achieve a powerful functi
Open the browser, enter "localhost", then delete, and then enter "www.baidu.com". I'll go! ---XINGYUNPI use DWR implementation without refreshing dynamic submission, the result, configured to remote server unexpectedly appeared such a mistake, pop-up error window, error message for
"CSRF security Error" , Zocha right check, finally know why ... General
Tomcat6 is not such a mistake, replace
TOMCAT7 will be like this, listen to a foreigner said, tom
DWR conversion mapMap type mapping in DWR's official document only one word.
...
But there are always problems with this configuration when dealing with mapWe have a function as follows
Public mapAt this point we are configuring this in the Dwr.xml file
Import Java.util.Map;
Import java.util.List;
Import Test. Reportdwrutil;
Reportdwrutil.getparametervalues (String, map]]>
Running programs always throws the following exceptions
Java.lang.ClassCast
Compile JavaCodeWe may often use buffalo to call Ajax, and publish a Java code directly to be remotely called by Js.
Method. At the same time, we may ignore the security issue. If the Java code is not as simple as reading data, it is to delete and update the database.
Or file operation method.
Hackers are likely to launch attacks using the following code
This method is suitable for embedding WebBrowser in C # to interact with the C # background code on pages loaded in the browser.
I. C # Program
1. Add WebBrowser to the C # form and add the URL of the page to the browser.
2. Add using System. Runtime. InteropServices to the form code; // interact with Html pages.
Add [ComVisible (true)] in the previous line of the class // interact with the Html page
Add
Th
This method works for embedded WebBrowser (browsers) in C # to interact with C # 's background code by loading pages in a browser.One, C # program1. Add WebBrowser (browser) to the C # form to add the URL of the page to the browser.2. Form code Add using system.runtime.interopservices;//and HTML page interactive useAdd [ComVisible (TRUE)]//and HTML pages interactively using the previous line on the classIn
: Pollingprovider
Remoting: Remotingprovider
.style1 { width: 100%; }-->
Remotingprovider exposes the methods used to access the server on the client.This is a Remote Procedure Call (RPC) connection type, that is, the client can initialize processes on the server. In this way, the code is more maintainability, and the path between the client and the server is clearer and clearer. This is not easy if y
, you should assign an ID to remember the token for future search. For example:
View plaincopy to clipboardprint? Ext. Direct. addprovider ({type: 'polling', URL: 'php/poll. php', ID: 'Poll-provider'}); Ext. Direct. addprovider ({Type: 'polling ',URL: 'php/poll. php ',ID: 'Poll-provider'});
Priority: the priority of the number request. The lower the value, the higher the priority. 0 indicates "duplex" (always open ). All supplies are 1 by default, except pollingprovider. The default value is 3.
During sshd integration, I simply wrote a program, but when I submitted the form data, there was a Chinese garbled problem. I have used several methods to solve the garbled problem, but it is useless. The so-called, fans of the Board, the audience. I asked my friends, oh, it turned out that when the form data was submitted, I wrote less than one parameter. This is the code that garbled during Chinese submission:
This is because the method = "Post" pa
Configuration method:1 Official website Dwr.jar Package2 Web3 Dwr.xmlA and Spring Integration B No integration with spring4 JSP page referenceThe above configuration is a bunch of online, the focus is below use example ******************************************************************** *********1 JSP page notation and 2 background notation1:2 Java code@Overridepublic stringteststr (STRINGNBSP;STR) {system.out.println (str);return "Hello" + STR;} /***
After you execute a method with parameters,
DWR1.3+TOMCAT5 does not appear invalid reply from server exceptionDWR2+TOMCAT5 invalid reply from server exception appearsdwr1.3+resin3.0.8 will appear invalid reply from server exception (the problem has
(1) Configure dwrservlet in Web. XML as follows:
DWR-invoker
org. directwebremoting. servlet. dwrservlet
debug
true
DWR-invoker
/DWR/*
(2) In
DWRConfigure in. xml
reslut -->
(3) Page Object lead object
(4) Page
debug
true
Resolution:
Parameters in the servlet range can only be obtained in the servlet Init () method. The configuration in Web. XML is as follows: mainservlet com. Wes. Controller. mainservlet param1 avalible in servlet Init () 0
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