spring CharsetEditor 源码
spring CharsetEditor 代码
文件路径：/spring-beans/src/main/java/org/springframework/beans/propertyeditors/CharsetEditor.java
/*
* Copyright 2002-2022 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.beans.propertyeditors;
import java.beans.PropertyEditorSupport;
import java.nio.charset.Charset;
import org.springframework.util.StringUtils;
/**
* Editor for {@code java.nio.charset.Charset}, translating charset
* String representations into Charset objects and back.
*
* <p>Expects the same syntax as Charset's {@link java.nio.charset.Charset#name()},
* e.g. {@code UTF-8}, {@code ISO-8859-16}, etc.
*
* @author Arjen Poutsma
* @author Sam Brannen
* @since 2.5.4
* @see Charset
*/
public class CharsetEditor extends PropertyEditorSupport {
@Override
public void setAsText(String text) throws IllegalArgumentException {
if (StringUtils.hasText(text)) {
setValue(Charset.forName(text.trim()));
}
else {
setValue(null);
}
}
@Override
public String getAsText() {
Charset value = (Charset) getValue();
return (value != null ? value.name() : "");
}
}
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