JSTL Fmtformatnumber date, number, currency format

JSTL Fmt:formatnumber Date, number, currency format

Use <fmt> tags should be imported first

<%@ taglib prefix= "FMT" uri= "Http://java.sun.com/jsp/jstl/fmt"%>

Its URI can be under the Fmt.tld file

1. Date format

<fmt:formatdate value= "${xxx.date}" pattern= "Yyyy-mm-dd HH:mm:ss"/>

Value: Date to format

Pattern: Format of date formatting

2 Number Format

<fmt:formatnumber value= "A" type= "currency" pattern= "$.00"/>--$12.00 <fmt:formatnumber value= "A" type= "currency" pattern= "$.0#"/>--$12.0 <fmt:formatnumber value= "1234567890" type= "Currency"/>--$1,234,567,890.00 (the symbol for that currency is related to the local setting of the current Web server) <fmt:formatnumber value= "123456.7891" pattern= "#, #00.0#"/>--123,456.79 <fmt:formatnumber value= "123456.7" pattern= "#, #00.0#"/>--123,456.7 <fmt:formatnumber value= "123456.7" pattern= "#, #00.00#"/>--123,456.70 <fmt:formatnumber value= "A" type= "percent"/>-1,200% (type can be currency, number, and percent)

1. Java formatted output:

DecimalFormat df = new DecimalFormat ("format"); String FMT =df.format (double); Symbolic meaning 01 Digit # one digit, leading 0 and rear-end 0 do not show . decimal point Split position , the location of the group separator -Negative prefix % with 100 multiplication and display percent sign Any other symbol includes the specified symbol in the output string

2. Programming to achieve the internationalization of fixed text

The ResourceBundle class provides a static method getbundle that is used to mount a resource file and create a ResourceBundle instance:

Locale Currentlocale = Locale.getdefault ();

ResourceBundle MyResources =

Resourcebundle.getbundle (basename, Currentlocale);

basename is the resource packet name (and must be a full path).

The code is as follows:

<%

ResourceBundle bundler =

Resourcebundle.getbundle ("Class3g.web.properties.MyProperties",

Request.getlocale ());

%>

<form>

<%=bundler.getstring ("username")%><input type= "text" name= "username"/><br/>

<%=bundler.getstring ("password")%><input type= "text" name= "password"/><br/>

<input type= "Submit" value= "<%=bundler.getstring" ("Submit")%> "/><br/>"

</form>

<!--

<fmt:setbundle basename= "Class3g.web.properties.MyProperties"/>

-->

<fmt:bundle basename= "Class3g.web.properties.MyProperties" >

<form>

<fmt:message key= "username"/><input type= "text" name= "username"/><br/>

<fmt:message key= "password"/> <input type= "text" name= "password"/><br/>

<input type= "Submit" value= "<fmt:message key=" Submit "/>"/><br/>

</form>

</fmt:bundle>

The three manifestations of the current time are as follows:<br><br>

(1): <fmt:formatdate value= "<%=new date ()%>" type= "date"/><br><br>

(2): <fmt:formatdate value= "<%=new Date ()%>" type= "Time"/><br><br>

(3): <fmt:formatdate value= "<%=new Date ()%>" type= "both"/>