terasoluna2asdfasdf

Question

package jp.terasoluna.fw.web.struts.actions;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.InputStream;

import jp.terasoluna.fw.exception.SystemException;

import org.apache.commons.lang.StringUtils;

public class DownloadFile extends AbstractDownloadObject {

private static final long serialVersionUID = 1461327659352290323L;

/**

protected File file = null;


public DownloadFile(File file) {
    this(null, file);
}


public DownloadFile(String name, File file) {
    super(name, null, null);
    this.file = file;
    if (file == null) {
        throw new SystemException(new IllegalArgumentException(
        "Download content must not be null"),
        NO_DOWNLOAD_CONTENT_ERROR);
    }
    if (StringUtils.isEmpty(getName())) {
        setName(file.getName());
    }
}


@Override
public int getLengthOfData() {
    return (int) file.length();
}


@Override
protected InputStream getStreamInternal() throws FileNotFoundException {
    return new FileInputStream(file);
}

}

Answer 1

不知道您的问题在哪里？