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@ -10,8 +10,9 @@ import javax.swing.text.JTextComponent;
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import javax.swing.text.PlainDocument; |
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/** |
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* |
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*/ |
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public class JDateDocument extends PlainDocument{ |
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public class JDateDocument extends PlainDocument { |
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private JTextComponent textComponent; //日期输入文本框
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private SimpleDateFormat dateFormat; |
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@ -26,7 +27,7 @@ public class JDateDocument extends PlainDocument{
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** 调用者：类JDateDocument |
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*******************************************************************/ |
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public JDateDocument(JTextComponent tc, SimpleDateFormat dateFormat) throws |
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UnsupportedOperationException{ |
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UnsupportedOperationException { |
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//当前日期构造
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this(tc, dateFormat, getCurrentDate(dateFormat)); |
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} |
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@ -34,50 +35,61 @@ public class JDateDocument extends PlainDocument{
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public JDateDocument(JTextComponent tc, |
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SimpleDateFormat dateFormat, |
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String initDateTime) throws |
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UnsupportedOperationException{ |
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//设置当前日期格式
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setDateFormat(dateFormat); |
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//保存操作的文本框
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textComponent = tc; |
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//设置显示为当前日期,同时完成显示的格式化
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try{ |
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insertString(0, initDateTime, null); |
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} catch(BadLocationException ex){ |
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throw new UnsupportedOperationException(ex.getMessage()); |
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} |
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UnsupportedOperationException { |
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this(tc, dateFormat, initDateTime, false); |
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} |
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/** |
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* |
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* @param tc |
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* @param dateFormat |
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* @param initDateTime |
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* @param initTime 判断是不是要通过insertString设置默认值 |
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* @throws UnsupportedOperationException |
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*/ |
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public JDateDocument(JTextComponent tc, |
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SimpleDateFormat dateFormat, |
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int emptyDateTime) throws |
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UnsupportedOperationException{ |
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String initDateTime, |
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boolean initTime) throws |
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UnsupportedOperationException { |
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//设置当前日期格式
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setDateFormat(dateFormat); |
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//保存操作的文本框
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textComponent = tc; |
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//给了第三个int类型的参数说明不要一个默认的日期作为初始值
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//设置显示为当前日期,同时完成显示的格式化,如果emptyDateTime为true就设时间为空
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if (!initTime) { |
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try { |
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insertString(0, initDateTime, null); |
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} catch (BadLocationException ex) { |
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throw new UnsupportedOperationException(ex.getMessage()); |
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} |
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} |
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} |
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/** |
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* 设置当前日期格式 |
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* |
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* @param dateFormat SimpleDateFormat |
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*/ |
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public void setDateFormat(SimpleDateFormat dateFormat){ |
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public void setDateFormat(SimpleDateFormat dateFormat) { |
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this.dateFormat = dateFormat; |
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} |
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/** |
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* 取得当前日期格式 |
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* |
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* @return SimpleDateFormat |
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*/ |
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public SimpleDateFormat getDateFormat(){ |
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public SimpleDateFormat getDateFormat() { |
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return dateFormat; |
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} |
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/** |
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* 取得当前系统日时 |
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* |
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* @return String |
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*/ |
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public static String getCurrentDate(SimpleDateFormat smFormat){ |
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public static String getCurrentDate(SimpleDateFormat smFormat) { |
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return smFormat.format(new Date()); |
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} |
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@ -92,15 +104,15 @@ public class JDateDocument extends PlainDocument{
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** 调用者：类JDateDocument |
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*******************************************************************/ |
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public void insertString(int offset, String s, |
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AttributeSet attributeSet) throws BadLocationException{ |
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AttributeSet attributeSet) throws BadLocationException { |
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String toTest; //用于测试输入合法性的字符串
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//判断插入字符串长度
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if(s.length() == 1){ |
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if (s.length() == 1) { |
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//长度为1
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try{ |
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try { |
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//限制输入为整数
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Integer.parseInt(s); |
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} catch(Exception ex){ |
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} catch (Exception ex) { |
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//错误则提示并返回
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Toolkit.getDefaultToolkit().beep(); |
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return; |
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@ -108,14 +120,14 @@ public class JDateDocument extends PlainDocument{
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//取得原始插入位置
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int newOffset = offset; |
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//如果插入位置为"/"," ","-"符号的前面,则移动到其后面插入(改变newOffset的值)
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if(offset == 4 || offset == 7 || |
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if (offset == 4 || offset == 7 || |
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offset == 10 || offset == 13 || |
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offset == 16){ |
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offset == 16) { |
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newOffset++; |
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textComponent.setCaretPosition(newOffset); |
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} |
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//如果插入位置为最后,则不插入
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if(offset == dateFormat.toPattern().length()){ |
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if (offset == dateFormat.toPattern().length()) { |
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return; |
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} |
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//取得显示的时间,处理后得到要显示的字符串
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@ -124,7 +136,7 @@ public class JDateDocument extends PlainDocument{
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toTest.substring(newOffset + 1); |
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//如果要显示的字符串合法,则显示,否则给出提示并退出
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boolean isValid = isValidDate(toTest); |
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if(!isValid){ |
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if (!isValid) { |
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Toolkit.getDefaultToolkit().beep(); |
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return; |
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} |
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@ -133,9 +145,9 @@ public class JDateDocument extends PlainDocument{
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super.insertString(newOffset, s, attributeSet); |
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} |
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//如果插入长度10
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else if(s.length() == 10 || s.length() == 19){ |
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else if (s.length() == 10 || s.length() == 19) { |
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//合法则显示,否则给出提示退出
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if(!isValidDate(s)){ |
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if (!isValidDate(s)) { |
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Toolkit.getDefaultToolkit().beep(); |
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return; |
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} |
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@ -153,10 +165,10 @@ public class JDateDocument extends PlainDocument{
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** 返回值：无 |
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** 调用者：insertString(int, String,AttributeSet) |
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***********************************************************************************/ |
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public void remove(int offset, int length) throws BadLocationException{ |
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public void remove(int offset, int length) throws BadLocationException { |
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//如果插入位置在"-"前,则回退一个光标位置
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//yyyy-MM-dd HH:mm:ss
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if(offset == 4 || offset == 7 || |
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if (offset == 4 || offset == 7 || |
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offset == 10 || offset == 13 || |
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offset == 16) |
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textComponent.setCaretPosition(offset - 1); |
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@ -173,32 +185,32 @@ public class JDateDocument extends PlainDocument{
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** 返回值：boolean型,真,表示是合法的,假,表示不合法 |
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** 调用者：insertString(int, String,AttributeSet) |
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***********************************************************************************/ |
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private boolean isValidDate(String strDate){ |
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private boolean isValidDate(String strDate) { |
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int intY, intM, intD; //年,月,日,时,分,秒的值
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int intH = 0, intMi = 0, intS = 0; |
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int iCaretPosition; //光标位置
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int iPatternLen = getDateFormat().toPattern().length(); |
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//获取字符串
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if(strDate == null){ |
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if (strDate == null) { |
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return false; |
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} |
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strDate = strDate.trim(); |
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//如果为空,长度不对,则为非法,返回false
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if(strDate.length() != iPatternLen){ |
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if (strDate.length() != iPatternLen) { |
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return false; |
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} |
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//如果是全角字符,则返回false
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for(int i = 0; i < 10; i++){ |
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if(((int)strDate.charAt(i)) > 255){ |
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for (int i = 0; i < 10; i++) { |
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if (((int) strDate.charAt(i)) > 255) { |
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return false; |
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} |
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} |
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//取年,月,日的值
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try{ |
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try { |
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intY = Integer.parseInt(strDate.substring(0, 4)); |
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intM = Integer.parseInt(strDate.substring(5, 7)); |
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intD = Integer.parseInt(strDate.substring(8, 10)); |
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} catch(Exception e){ |
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} catch (Exception e) { |
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//失败则返回false
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return false; |
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} |
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@ -207,23 +219,23 @@ public class JDateDocument extends PlainDocument{
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boolean isValid = true; |
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//月越界
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if(intM > 12 || intM < 1){ |
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if (intM > 12 || intM < 1) { |
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intM = Math.min(12, Math.max(1, intM)); |
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isValid = false; |
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} |
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//根据月份,判断日期输入,如越界,则修改
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if(intD < 1){ |
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if (intD < 1) { |
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intD = 1; |
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isValid = false; |
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} |
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switch(intM){ |
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switch (intM) { |
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case 4: |
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case 6: |
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case 9: |
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case 11: //最大天数为30天
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//如果输入大于30,则修改为30
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if(intD > 30){ |
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if (intD > 30) { |
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intD = 30; |
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isValid = false; |
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} |
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@ -231,15 +243,15 @@ public class JDateDocument extends PlainDocument{
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case 2: //2月份
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//区别闰年
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if((intY % 4 == 0 && intY % 100 != 0) || intY % 400 == 0){ |
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if ((intY % 4 == 0 && intY % 100 != 0) || intY % 400 == 0) { |
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//如果输入大于29,则修改为29
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if(intD > 29){ |
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if (intD > 29) { |
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intD = 29; |
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isValid = false; |
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} |
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} else{ |
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} else { |
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//如果输入大于28,则修改为28
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if(intD > 28){ |
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if (intD > 28) { |
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intD = 28; |
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isValid = false; |
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} |
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@ -248,7 +260,7 @@ public class JDateDocument extends PlainDocument{
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default: //最大天数为31天
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//如果输入大于31,则修改为31
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if(intD > 31){ |
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if (intD > 31) { |
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intD = 31; |
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isValid = false; |
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} |
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@ -256,31 +268,31 @@ public class JDateDocument extends PlainDocument{
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// System.err.println("out:intY="+intY+",intM="+intM+",intD="+intD);
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//yyyy-MM-dd HH:mm:ss
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if(iPatternLen > 10){ |
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try{ |
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if (iPatternLen > 10) { |
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try { |
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intH = Integer.parseInt(strDate.substring(11, 13)); |
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intMi = Integer.parseInt(strDate.substring(14, 16)); |
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intS = Integer.parseInt(strDate.substring(17)); |
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} catch(Exception e){ |
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} catch (Exception e) { |
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return false; |
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} |
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//时越界
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if(intH > 23 || intH < 0){ |
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if (intH > 23 || intH < 0) { |
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intH = Math.min(23, Math.max(0, intH)); |
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isValid = false; |
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} |
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//分越界
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if(intMi > 59 || intMi < 0){ |
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if (intMi > 59 || intMi < 0) { |
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intMi = Math.min(59, Math.max(0, intMi)); |
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isValid = false; |
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} |
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//秒越界
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if(intS > 59 || intS < 0){ |
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if (intS > 59 || intS < 0) { |
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intS = Math.min(59, Math.max(0, intS)); |
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isValid = false; |
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} |
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} |
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if(!isValid){ |
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if (!isValid) { |
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textComponent.setText(toDateString(intY, intM, intD, intH, intMi, |
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intS)); |
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textComponent.setCaretPosition(iCaretPosition + 1); |
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@ -288,11 +300,11 @@ public class JDateDocument extends PlainDocument{
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return isValid; |
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} |
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private String toDateString(int y, int m, int d, int h, int mi, int s){ |
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private String toDateString(int y, int m, int d, int h, int mi, int s) { |
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m = Math.max(1, Math.min(12, m)); |
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//最大天数为31天
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d = Math.max(1, Math.min(31, d)); |
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switch(m){ |
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switch (m) { |
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case 4: |
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case 6: |
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case 9: |
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@ -302,9 +314,9 @@ public class JDateDocument extends PlainDocument{
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case 2: |
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//润年
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if((y % 4 == 0 && y % 100 != 0) || y % 400 == 0){ |
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if ((y % 4 == 0 && y % 100 != 0) || y % 400 == 0) { |
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d = Math.min(29, d); //最大天数为29天
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} else{ |
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} else { |
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d = Math.min(28, d); //最大天数为28天
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} |
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break; |
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@ -321,7 +333,7 @@ public class JDateDocument extends PlainDocument{
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String strDate; |
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strDate = strY + strPattern.substring(4, 5) |
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+ strM + strPattern.substring(7, 8) + strD; |
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if(strPattern.length() == 19){ |
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if (strPattern.length() == 19) { |
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strDate += strPattern.substring(10, 11) |
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+ rPad0(2, "" + h) + strPattern.substring(13, 14) |
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+ rPad0(2, "" + mi) + strPattern.substring(16, 17) |
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@ -330,8 +342,8 @@ public class JDateDocument extends PlainDocument{
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return strDate; |
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} |
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private String rPad0(int maxLen, String str){ |
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if(str.length() < maxLen){ |
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private String rPad0(int maxLen, String str) { |
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if (str.length() < maxLen) { |
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str = "0" + str; |
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} |
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return str; |
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John.Ying
2 years ago