网络按编码读写文本内容-优快云博客

本文链接：https://blog.youkuaiyun.com/huangbo_2020/article/details/83885848

本文介绍了一种从指定URL下载文本内容并将其转换为指定编码格式的方法，同时还包括将字符串内容写入到本地文件的功能。该方法使用了Java标准库中的URL、HttpURLConnection和BufferedReader等类。

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public String downloadTxt(String urlStr, String encodeType) {
StringBuffer sb = new StringBuffer();
String line = null;
BufferedReader buffer = null;
URL url;
try {
// 创建一个URL
url = new URL(urlStr);
try {
HttpURLConnection urlCon = (HttpURLConnection) url
.openConnection();

buffer = new BufferedReader(new InputStreamReader(
urlCon.getInputStream(), encodeType));

while ((line = buffer.readLine()) != null) {
sb.append(line);
}
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
} catch (MalformedURLException e) {
// TODO Auto-generated catch block
e.printStackTrace();
} finally {
try {
buffer.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
return sb.toString();
}

public static void writeStringToFile(String file, String content, String encodType)
throws IOException {
FileOutputStream writerStream = new FileOutputStream(file);
BufferedWriter writer = new BufferedWriter(new OutputStreamWriter(
writerStream, encodType));
writer.write(content);
writer.close();
}