An example of writing a potentially large amount of data directly to a zip file, item by item:

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
import org.northcoder.titlewebdemo.beans.Title;
import java.util.List;
import java.io.OutputStream;
import java.io.FileOutputStream;
import java.io.BufferedOutputStream;
import java.io.IOException;
import java.util.zip.GZIPOutputStream;
import org.northcoder.titlewebdemo.util.LoggerUtils;
import static java.nio.charset.StandardCharsets.UTF_8;

/**
 *
 */
public class JsonZipFileWriter {

    private final List<Title> titles;
    private OutputStream out;

    public JsonZipFileWriter(List<Title> titles) {
        this.titles = titles;
        boolean append = true;
        try {
            this.out = new GZIPOutputStream(
                    new BufferedOutputStream(
                            new FileOutputStream(
                                    "E:/TitleWebDemo/foo.zip", append)));
        } catch (IOException ex) {
            LoggerUtils.LOGGER.error(ex);
        }

    }

    public void write() {
        titles.forEach((title) -> {
            try {
                out.write(title.getBeanDataAsJson().getBytes(UTF_8));
            } catch (IOException ex) {
                LoggerUtils.LOGGER.error(ex);
            }
        });
        try {
            out.close();
        } catch (IOException ex) {
            LoggerUtils.LOGGER.error(ex);
        }
    }

}