spring PercentStyleFormatter 源码
spring PercentStyleFormatter 代码
文件路径：/spring-context/src/main/java/org/springframework/format/number/PercentStyleFormatter.java
/*
* Copyright 2002-2015 the original author or authors.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* https://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.springframework.format.number;
import java.text.DecimalFormat;
import java.text.NumberFormat;
import java.util.Locale;
/**
* A formatter for number values in percent style.
*
* <p>Delegates to {@link java.text.NumberFormat#getPercentInstance(Locale)}.
* Configures BigDecimal parsing so there is no loss in precision.
* The {@link #parse(String, Locale)} routine always returns a BigDecimal.
*
* @author Keith Donald
* @author Juergen Hoeller
* @since 4.2
* @see #setLenient
*/
public class PercentStyleFormatter extends AbstractNumberFormatter {
@Override
protected NumberFormat getNumberFormat(Locale locale) {
NumberFormat format = NumberFormat.getPercentInstance(locale);
if (format instanceof DecimalFormat) {
((DecimalFormat) format).setParseBigDecimal(true);
}
return format;
}
}
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