/*
 * Copyright 2002-2017 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
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package org.springframework.web.multipart.support;

import java.beans.PropertyEditorSupport;
import java.io.IOException;

import org.springframework.lang.Nullable;
import org.springframework.web.multipart.MultipartFile;

Custom PropertyEditor for converting MultipartFiles to Strings.

Allows one to specify the charset to use.

Author:Juergen Hoeller
Since:13.10.2003
/** * Custom {@link java.beans.PropertyEditor} for converting * {@link MultipartFile MultipartFiles} to Strings. * * <p>Allows one to specify the charset to use. * * @author Juergen Hoeller * @since 13.10.2003 */
public class StringMultipartFileEditor extends PropertyEditorSupport { @Nullable private final String charsetName;
Create a new StringMultipartFileEditor, using the default charset.
/** * Create a new {@link StringMultipartFileEditor}, using the default charset. */
public StringMultipartFileEditor() { this.charsetName = null; }
Create a new StringMultipartFileEditor, using the given charset.
Params:
  • charsetName – valid charset name
See Also:
/** * Create a new {@link StringMultipartFileEditor}, using the given charset. * @param charsetName valid charset name * @see java.lang.String#String(byte[],String) */
public StringMultipartFileEditor(String charsetName) { this.charsetName = charsetName; } @Override public void setAsText(String text) { setValue(text); } @Override public void setValue(Object value) { if (value instanceof MultipartFile) { MultipartFile multipartFile = (MultipartFile) value; try { super.setValue(this.charsetName != null ? new String(multipartFile.getBytes(), this.charsetName) : new String(multipartFile.getBytes())); } catch (IOException ex) { throw new IllegalArgumentException("Cannot read contents of multipart file", ex); } } else { super.setValue(value); } } }