How to solve the struts2 date type conversion, struts2 date type

How to solve the struts2 date type conversion, struts2 date type

Therefore, to ensure that the system must convert the Date type correctly, we need to write a global type conversion class to convert the types between Date and String.

Copy codeThe Code is as follows:
Package com. great. util;

Import java. text. DateFormat;
Import java. text. SimpleDateFormat;
Import java. util. Date;
Import java. util. Map;

Import com. opensymphony. xwork2.conversion. impl. DefaultTypeConverter;

Public class DateConverter extends DefaultTypeConverter {
Private static final DateFormat [] ACCEPT_DATE_FORMATS = {
New SimpleDateFormat ("dd/MM/yyyy "),
New SimpleDateFormat ("yyyy-MM-dd "),
New SimpleDateFormat ("yyyy/MM/dd")}; // Date Format that supports Conversion

@ Override
Public Object convertValue (Map context, Object value, Class toType ){
If (toType = Date. class) {// convert String to Date when the browser submits a request to the server
Date date = null;
String dateString = null;
String [] params = (String []) value;
DateString = params [0]; // obtain the date string
For (DateFormat format: ACCEPT_DATE_FORMATS ){
Try {
Return format. parse (dateString); // supports format and conversion for Traversing dates
} Catch (Exception e ){
Continue;
}
}
Return null;
}
Else if (toType = String. class) {// when the server outputs data to the browser, convert the Date to String type.
Date date = (Date) value;
Return new SimpleDateFormat ("yyyy-MM-dd"). format (date); // The output format is yyyy-MM-dd.
}

Return null;
}
}

Create a xwork-conversion.properties file in the root directory and add the following statement in it to register the type converter
Java. util. Date = com. great. util. DateConverter
Among them, com. great. util. DateConverter is the full name of the date conversion class containing the namespace.
 

Then many people are done.

I have not succeeded yet, and the system reports an error

"ERROR (CommonsLogger. java: 27)-Conversion registration error"

"Java. lang. ClassNotFoundException: com. great. util. DateConverter"

Failed to register the type converter?

Check carefully and find that there is a space behind "java. util. Date = com. great. util. DateConverter! The truth is clear. Remove spaces and run again. Success!