com.adanac.module.blog.servlet.UploadImage.java Source code

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Here is the source code for com.adanac.module.blog.servlet.UploadImage.java

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package com.adanac.module.blog.servlet;

/*
 * 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
 *
 *      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.
 */

import com.adanac.module.blog.config.Configuration;
import com.adanac.module.blog.util.IOUtil;
import com.adanac.module.blog.util.ImageUtil;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.lang.StringUtils;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import java.io.File;
import java.io.IOException;
import java.util.List;

/**
 * @author adanac
 * @since 2015616 ?12:05:05
 */
public class UploadImage extends AbstractServlet {

    @Override
    protected void service() throws ServletException, IOException {
        HttpServletRequest request = getRequest();
        String path = null;
        DiskFileItemFactory factory = new DiskFileItemFactory(5 * 1024,
                new File(Configuration.getContextPath("temp")));
        ServletFileUpload upload = new ServletFileUpload(factory);
        upload.setSizeMax(3 * 1024 * 1024);
        try {
            List<FileItem> items = upload.parseRequest(request);
            FileItem fileItem = null;
            if (items != null && items.size() > 0 && StringUtils.isNotBlank((fileItem = items.get(0)).getName())) {
                String fileName = fileItem.getName();
                if (!fileName.endsWith(".jpg") && !fileName.endsWith(".gif") && !fileName.endsWith(".png")) {
                    writeText("format_error");
                    return;
                }
                path = ImageUtil.generatePath(fileItem.getName());
                IOUtil.copy(fileItem.getInputStream(), Configuration.getContextPath(path));
                fileItem.delete();
                writeText(Configuration.getSiteUrl(path));
            }
        } catch (FileUploadException e) {
            throw new RuntimeException(e);
        }
    }

}