/*
* Copyright 2004-2015 the Seasar Foundation and the Others.
*
* 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
*
* http://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.seasar.extension.filter;
import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.FilterConfig;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
/**
* リクエストのエンコーディングを設定するためのフィルタです。
*
* @author higa
*
*/
public class EncodingFilter implements Filter {
/**
* エンコーディングのキー
*/
public static String ENCODING = "encoding";
/**
* デフォルトのエンコーディング
*/
public static String DEFAULT_ENCODING = "Windows-31j";
private String encoding;
/**
* {@link EncodingFilter}を作成します。
*/
public EncodingFilter() {
}
public void init(FilterConfig config) throws ServletException {
encoding = config.getInitParameter(ENCODING);
if (encoding == null) {
encoding = DEFAULT_ENCODING;
}
}
public void destroy() {
}
public void doFilter(ServletRequest request, ServletResponse response,
FilterChain chain) throws IOException, ServletException {
if (request.getCharacterEncoding() == null) {
request.setCharacterEncoding(encoding);
}
chain.doFilter(request, response);
}
}