import java.beans.PropertyEditorSupport;
import java.sql.Timestamp;
import java.text.SimpleDateFormat;
import org.springframework.util.StringUtils;
import java.text.ParseException;
public class CustomTimestampEditor extends
PropertyEditorSupport {
private final SimpleDateFormat dateFormat;
private final boolean
allowEmpty;
private final int
exactDateLength;
public
CustomTimestampEditor(SimpleDateFormat dateFormat, boolean
allowEmpty) {
this.dateFormat = dateFormat;
this.allowEmpty = allowEmpty;
this.exactDateLength = -1;
}
public
CustomTimestampEditor(SimpleDateFormat dateFormat,
boolean
allowEmpty, int exactDateLength) {
this.dateFormat = dateFormat;
this.allowEmpty = allowEmpty;
this.exactDateLength = exactDateLength;
}
public void
setAsText(String text) throws IllegalArgumentException {
if ((this.allowEmpty) &&
(!(StringUtils.hasText(text)))) {
setValue(null);
} else {
if ((text
!= null) && (this.exactDateLength >= 0)
&& (text.length() !=
this.exactDateLength)) {
throw new
IllegalArgumentException(
"Could not
parse date: it is not exactly"
+ this.exactDateLength + "characters
long");
}
try
{
setValue(new
Timestamp(this.dateFormat.parse(text).getTime()));
} catch
(ParseException ex) {
throw new
IllegalArgumentException("Could not parse date: "
+
ex.getMessage(), ex);
}
}
}
public String
getAsText() {
Timestamp value = (Timestamp) getValue();
return ((value != null) ?
this.dateFormat.format(value) : "");
}
}
上面爲自定義的類就是將前臺日期格式轉換成timestamp類型。
然後再controller類的最前面加入如下方法：
@InitBinder
public void initBinder(WebDataBinder binder) {
SimpleDateFormat dateFormat = new
SimpleDateFormat("yyyy-mm-dd HH:mm:ss");
dateFormat.setLenient(false);
binder.registerCustomEditor(Timestamp.class, new
CustomTimestampEditor(dateFormat, true));
}
解釋：
binder.registerCustomEditor(Timestamp.class, new
CustomTimestampEditor(dateFormat, true));
這個方法中的new的類可以是自定義的類，也可以使用一些已有的類即已經繼承並實現PropertyEditorSupport類的類。
具體默認的類有哪些可以去看PropertyEditorSupport這個類中的源碼，因爲你自定義的類也是繼承的這個類。