Generally at the beginning of each page, add:
pageencoding= "UTF-8"%>
Request.setcharacterencoding ("UTF-8");%>
The role of Charset=utf-8 is to specify that the JSP output to the client is encoded as "UTF-8"
Pageencoding= "UTF-8" in order for
First thing, from the online next POI package and then import to MyEclipse.
And then the code:
Public ActionResult Excelprint () {Hssfworkbook workbook = new Hssfworkbook ();//Create an Excel file Hssfsheet sheet = Workbook.createsheet ()///Create
I. Overview
In Web applications, the generation of some reports may take a long time to compute, and some sites provide weather information that requires access to remote servers for SOAP calls to get temperature information. All of these are
JSP page
When using the JSTL's expression language, the request parameters are made in the available object implicit. This example demonstrates you to include the value of a request parameter from the query string or posted data in the gene Rated
1. How to mix JSP and SSI #include?
You can include pure HTML in a JSP by using the following methods:
But if the data.inc contains JSP CODE, we can use:
2. How to execute a thread-safe JSP?
Just add the following instructions
3, JSP How
JSP to upload file support is not as good as the support in PHP, directly into the function, and not like the ASP in order to achieve through the component. The JSP can be implemented by JavaBean. But we do not have to write an uploaded bean on our
For a swing write application, in many projects, it is necessary to embed the page. This not only increases the interactivity and interface operability, but also makes the program more humane.
In the past, most of the interface embedding is mainly
jsp-defines a label with a tagged body--loop
So far, we have defined a custom label with no label. To define a class with a label to inherit the Bodytagsupport class, Bodytagsupport extends the TagSupport class, so the doStartTag and Doendtag
JAVA SERVER PAGE
The JSP itself is a servlet, so it has all the benefits of a servlet.
The JSP is converted to a servlet the first time the JSP is accessed.Extends Httpjspbaseand compile it into. class.
Jsp:Good performancePlatform IndependentTag
Download Kindeditor source files on the Web,
I am using the kindEditor4.1.2 version, after the compression of the list of the following figure:
Step 1, delete the asp,asp.net,examples,php file, and copy the three jar packages under the Lib folder
One, Page object
The Page object represents the JSP itself, or rather, it represents the JSP-translated servlet, which can invoke the method defined by the Servlet class.
Two, config object
The Config object holds some of the servlet's initial data
version dependencies between the Tomcat Servlet JSP jstl
Keywords: tomcat servlet jsp JSTL version
If the servlet/jsp/jstl is not the correct version, the following exception can easily occur:
generated servlet error: the
type
Request is an object that encapsulates the requested data and attributes submitted by the client side (that is, the user through browser).
response are objects that encapsulate Web server-side response data and
Before the example has been written, because the time relationship has not been released, this time to bring about the Taglib in the basic functions have been introduced, in taglib we found that there is a tag called this brief introduction tags
Read the properties file in the JSP and set the value to the JS variable:
Web_stderr.properties file contents: [XHTML] view plain copy common.username.error.null = username can is not null. Common.username.error.invalid = Username is invalid.
Eight, Simpletagsupport class
After JSP2.0, in order to simplify the difficulty of label development, you can use simpletagsupport for development;
1. Developing generic labels
Note the point:
(1) need to inherit Simpletagsupport class;
(2)
Many Web sites are articles or other types of content of the paging effect, beginners for pagination development will sometimes only use code, but not in-depth understanding of code before the business logic structure, master this, I think, any
OUT.PRINTLN () output to the client.
In Out.println (), out is an instance of response, which is output by response as an object, outputting content to the client. If you use SYSTEM.OUT.PRINTLN () in a JSP page, only one space is printed on the
The internet age is actually the era of data, the construction of large-scale e-commerce system must involve a large number of data display, data paging is frequently encountered problems, if each programmer to consider data acquisition and
The content source of this page is from Internet, which doesn't represent Alibaba Cloud's opinion;
products and services mentioned on that page don't have any relationship with Alibaba Cloud. If the
content of the page makes you feel confusing, please write us an email, we will handle the problem
within 5 days after receiving your email.
If you find any instances of plagiarism from the community, please send an email to:
info-contact@alibabacloud.com
and provide relevant evidence. A staff member will contact you within 5 working days.