Error Model
This example shows how to parse the date is not specified in the case of the year, as follows:
package com.fun
import com.fun.frame.SourceCode
import java.time.LocalDate
import java.time.format.DateTimeFormatter
class TSSS extends SourceCode {
public static void main(String[] args) {
public static void main(String[] args) {
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("dd MMM", Locale.CHINA);
String date = "02 12";
LocalDate localDate = LocalDate.parse(date, formatter);
System.out.println(localDate);
System.out.println(formatter.format(localDate));
}
}
}复制代码
Export
INFO-> 当前用户:fv,IP:192.168.0.100,工作目录:/Users/fv/Documents/workspace/fun/,系统编码格式:UTF-8,系统Mac OS X版本:10.15.3
Exception in thread "main" java.time.format.DateTimeParseException: Text '02 Jan' could not be parsed at index 3
at java.time.format.DateTimeFormatter.parseResolved0(DateTimeFormatter.java:1947)
at java.time.format.DateTimeFormatter.parse(DateTimeFormatter.java:1849)
at java.time.LocalDate.parse(LocalDate.java:400)
at java_time_LocalDate$parse.call(Unknown Source)
at org.codehaus.groovy.runtime.callsite.CallSiteArray.defaultCall(CallSiteArray.java:47)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:115)
at org.codehaus.groovy.runtime.callsite.AbstractCallSite.call(AbstractCallSite.java:135)
at com.fun.TSSS.main(TSSS.groovy:16)
Process finished with exit code 1复制代码
Correct
Mode dd MMM
is not enough; we need to DateTimeFormatterBuilder
provide a default year to date parsing.
package com.fun
import com.fun.frame.SourceCode
import java.time.LocalDate
import java.time.format.DateTimeFormatter
import java.time.format.DateTimeFormatterBuilder
import java.time.temporal.ChronoField
class TSSS extends SourceCode {
public static void main(String[] args) {
DateTimeFormatter formatter = new DateTimeFormatterBuilder()
.appendPattern("dd MM")
.parseDefaulting(ChronoField.YEAR, 2020)
.toFormatter(Locale.CHINA);
String date = "02 11";
LocalDate localDate = LocalDate.parse(date, formatter);
System.out.println(localDate);
System.out.println(formatter.format(localDate));
}
}复制代码
Export
INFO-> 当前用户:fv,IP:192.168.0.100,工作目录:/Users/fv/Documents/workspace/fun/,系统编码格式:UTF-8,系统Mac OS X版本:10.15.3
2020-11-02
02 11
Process finished with exit code 0复制代码
- Solemnly declare : The article first appeared in public No. "FunTester", prohibit third parties (except Tencent cloud) reproduce, publish.
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