Solution to failure to return json after the action in struts2 implements ModelDriven

Copy codeThe Code is as follows:Public class DeviceAction extends actaction implements ModelDriven {Private static Log log = LogFactory. getLog (DeviceAction. class );Private Device device = new Device (); // only the bean driven by the json model

S: set and s: date are used to determine the date in jsp.

Copy codeThe Code is as follows:

Solution to the Problem of too long jsp display text

Copy codeThe Code is as follows: title: 70} ">$ {fn: substring (schedule. content eq null? 'None': schedule. content, 0, 70)}... $ {Schedule. content null? 'None': schedule. content} $ {Schedule. content eq null? 'None': schedule. content}

JSP running principle and nine implicit objects

When each JSP page is accessed for the first time, the WEB Container will send the request to the JSP Engine (a Java program) for processing. The JSP Engine first translates JSP into a _ jspServlet (essentially a servlet) and calls it according to

Analysis of security risks caused by sessionid in a URL

Figure:  It was cut out from the security report sent from the test group. The figure has some minor problems. I wanted to re-draw one and I didn't find a suitable picture in visio. So we can only use others' diagrams.   Note: Let's describe the

Custom jsp Tag)

Custom tags)(Prepared study notes)Step 1. Create a Tag handler class (Tag Processor class)Package javax. servlet. jsp. tagextDevelop a label processor class for an empty Body -----> 1) implements Tag 2) extends TagSupportThe method of overwriting

Jsp obtains the browser and operating system information of the client.

String agent = request. getheader ("user-agent ");Stringtokenizer st = new stringtokenizer (agent ,";");St. nexttoken ();// Obtain the user's browser nameString userbrowser = st. nexttoken ();// Obtain the user's OS nameString useros = st. nexttoken

General static website Solution

Read and Write of multiple file servers. SMB protocol can be used here.Static Page, use freemarker open-source frameworkIf a large number of read/write requests are taken into account, the requests are distributed or scheduled.First, we should

Jsp Chinese garbled jsp mysql garbled Solution

Jsp Chinese garbled jsp mysql garbled methods to support Chinese characters in the servlet:Add the following to the first sentence of dopost or doget:Request. setCharacterEncoding ("GB2312 ");Response. setCharacterEncoding ("GB2312 ");Jsp garbledSet

AJAX FCKEditor Rich Editor integration page 1/2

(Http://www.fckeditor.net, JavaEye editor is also used FCKEditor, XX see slightly the same? Haha), it's OpenSource (free, you can directly change the source code, haha), powerful (almost a web version of office word ), provides support for a variety

Four XML parsing techniques in Java

In normal work, it is inevitable that XML will be used as the data storage format. Which of the following solutions is the most suitable for us? In this article, I made an incomplete evaluation of the four mainstream solutions, and only tested the

Digital signature of the Applet in Java2

My project is to use APPLET to create a Real-Time Message Queue monitoring program. because local resources are involved, the APPLET must be digitally signed and authenticated. My environment is windows, the application server is WEBLOGIC6.0, And

Change the file Suffix of JSP

Today I have nothing to worry about. I suddenly thought of a problem. Can I replace the suffix for accessing JSP files with my own suffix? After some debugging, I finally succeeded. Hahaha. So happy .....First, configure testsuffix mytest.

Pagination of JSP database operation data

// Variable DeclarationJava. SQL. Connection sqlCon; // database Connection objectJava. SQL. Statement sqlStmt; // SQL Statement objectJava. SQL. ResultSet sqlRst; // result set objectJava. lang. String strCon; // database connection StringJava.

Chinese problems in Tomcat + Jsp Environment

Abstract: There have been a lot of discussions about the problems that Java applications have encountered in processing Chinese characters. Unlike most discussions, this article will discuss the problems in Java when processing Chinese characters

Code for JSP to obtain the real IP Address

However, the real IP address of the client cannot be obtained through reverse proxy software such as Apache and Squid. If the reverse proxy software is used, the IP address obtained using the request. getRemoteAddr () method is 127.0.0.1 or 192.168.1

General JSP page jsp entry-level article

1. common. jsp Copy codeThe Code is as follows:Response. setHeader ("Cache-Control", "no-store"); /// HTTP 1.1Response. setHeader ("Pragma", "no-cache"); // HTTP 1.0Response. setDateHeader ("Expires", 0 );%>2. view. jspCopy codeThe Code is as

Detailed configuration of JSP dynamic website development environment page 1/2

The following uses Tomcat as the JSP Engine and uses Tomcat, Apache, and IIS as the three Web servers to describe how to build a JSP running environment.I. Introduction to related software1. J2SDK: the software development tool of Java2, which is

Analysis of JNDI binding of Hibernate

Hibernate's JNDI name binding is implemented in the net. sf. hibernate. impl. SessionFactoryObjectFactory program. Let's analyze the process of binding JNDI to Hibernate:We get SessionFactory and write code like this:Configuration conf = new

Nine basic built-in components of JSP

Source: If you have any copyright issues, please contact usBasic ComponentsJSP has the following nine basic built-in components (corresponding to the six internal components of ASP ):Request client request, which contains parameters from the

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