优化这段代码：ByteArrayOutputStream byteArrayOutputStream2 = new ByteArrayOutputStream(); ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(Base64.getDecoder().decode(response.getBody().split("return")[1] .replace(">","").replace("</",""))); ZipInputStream zipInputStream = new ZipInputStream(byteArrayInputStream); ZipEntry nextEntry = zipInputStream.getNextEntry(); while (nextEntry != null) { byte[] temp = new byte[1024]; int n = 0; while ((n = zipInputStream.read(temp)) != -1){ byteArrayOutputStream2.write(temp,0,n); } zipInputStream.closeEntry(); nextEntry = zipInputStream.getNextEntry(); } String str = new String(byteArrayOutputStream2.toByteArray(), StandardCharsets.UTF_8); IOUtils.closeQuietly(byteArrayOutputStream2); IOUtils.closeQuietly(zipInputStream); IOUtils.closeQuietly(byteArrayInputStream);

可以考虑使用 try-with-resources 语句来自动关闭流，避免手动关闭时可能出现的异常。同时，可以将循环中的读取和写入操作提取出来，使用 IOUtils.copy 方法来简化代码，避免手动循环读取和写入操作。

修改后的代码如下：

ByteArrayOutputStream byteArrayOutputStream2 = new ByteArrayOutputStream();
try (ByteArrayInputStream byteArrayInputStream = new ByteArrayInputStream(Base64.getDecoder().decode(response.getBody().split("return")[1].replace(">", "").replace("</", "")));
     ZipInputStream zipInputStream = new ZipInputStream(byteArrayInputStream)) {

    ZipEntry nextEntry = zipInputStream.getNextEntry();
    while (nextEntry != null) {
        IOUtils.copy(zipInputStream, byteArrayOutputStream2);
        zipInputStream.closeEntry();
        nextEntry = zipInputStream.getNextEntry();
    }
    String str = new String(byteArrayOutputStream2.toByteArray(), StandardCharsets.UTF_8);
}
IOUtils.closeQuietly(byteArrayOutputStream2);

这样代码更加简洁、易读，也更加安全。同时，使用了 IOUtils 类简化了代码，提高了代码的可维护性。