java - 如何使用 HttpClient

Question

我目前正尝试在 java 中使用以下代码通过“uri”获取一些数据:

HttpClient client = new DefaultHttpClient();
        HttpGet get = new HttpGet(uri);
        HttpResponse response = client.execute(get);
        HttpEntity entity = response.getEntity();
        if(entity != null){
            InputStream stream = entity.getContent();
            callString = stream.toString();
            return callString;
        }

但是这不起作用。有谁知道我在这里做错了什么？

Answer 1

你不能像那样打印出输入流...相反，做这样的事情:-

    HttpClient client = new DefaultHttpClient();
    HttpGet get = new HttpGet("http://ichart.finance.yahoo.com/table.csv?s=MSFT");
    HttpResponse response = client.execute(get);
    HttpEntity entity = response.getEntity();
    if (entity != null) {
        Scanner scanner = new Scanner(entity.getContent());
        while (scanner.hasNextLine()) {
            System.out.println(scanner.nextLine());
        }
    }

打印输出看起来像这样:-

1994-02-02,84.75,85.50,84.00,84.00,40924800,2.09
1994-02-01,85.00,85.75,84.50,85.12,44003200,2.12
1994-01-31,85.25,85.87,84.75,85.12,62566400,2.12
1994-01-28,84.50,85.50,84.25,84.87,41875200,2.11
1994-01-27,84.00,84.75,83.25,84.25,51129600,2.10
1994-01-26,85.00,85.00,84.00,84.25,50489600,2.10
1994-01-25,85.25,85.37,84.00,85.12,70361600,2.12
...