postData 无法解析为类型

发布于 2024-11-06 18:54:34 字数 1137 浏览 1 评论 0原文

我是 Android 编程新手。我正在尝试使用 post 将一些数据发布到服务器。我用谷歌搜索并想出了这个：

public void postData() {
    // Create a new HttpClient and Post Header
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");
        try {
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("id", "12345"));
            nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            // Execute HTTP Post Request
            HttpResponse response = httpclient.execute(httppost);

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
        } catch (IOException e) {
            // TODO Auto-generated catch block
        }

   }

我的问题是我在这段代码的第一行遇到错误：

postData无法解析为
令牌“{”上的类型语法错误，删除
令牌“void”上的此令牌语法错误"，@预计

我正在使用 Eclipse，并使用 Shift+Ctrl+o 来获取所有导入。

原文

I'm new to Android programing. I'm trying to post some data to a server using post. I googled it up and came up with this:

public void postData() {
    // Create a new HttpClient and Post Header
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");
        try {
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("id", "12345"));
            nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            // Execute HTTP Post Request
            HttpResponse response = httpclient.execute(httppost);

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
        } catch (IOException e) {
            // TODO Auto-generated catch block
        }

   }

My problem is I'm getting errors on the first line of this code:

postData cannot be resolved to a type
syntax error on token "{", delete this token
syntax error on token "void", @ expected

I'm using Eclipse and I used Shift+Ctrl+o to get all the imports.

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夜未央樱花落 2024-11-13 18:54:34

您的问题（根据您迄今为止提供的信息）是您在类之外声明函数 postData 。

Java中的函数需要在类中声明。要么，您因使用过多的 } 而意外关闭了前一类（在这种情况下，您应该在额外的 } 处出现错误），或者您还没有t 声明了一个类。

该类可能看起来像这样：

public class MyPoster {

    public void postData() {
        // Create a new HttpClient and Post Header
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");
        try {
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("id", "12345"));
            nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            // Execute HTTP Post Request
            HttpResponse response = httpclient.execute(httppost);

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
        } catch (IOException e) {
            // TODO Auto-generated catch block
        }

   }
}

You problem (based on the information you've given so far) is that you're declaring the function postData outside of a class.

Functions in Java need to be declared in a class. Either, you've accidently close off the previous class by having one too many } (in which case you should have an error at the extra }), or you haven't declared a class.

The class could look something like this:

public class MyPoster {

    public void postData() {
        // Create a new HttpClient and Post Header
        HttpClient httpclient = new DefaultHttpClient();
        HttpPost httppost = new HttpPost("http://www.yoursite.com/script.php");
        try {
            // Add your data
            List<NameValuePair> nameValuePairs = new ArrayList<NameValuePair>(2);
            nameValuePairs.add(new BasicNameValuePair("id", "12345"));
            nameValuePairs.add(new BasicNameValuePair("stringdata", "AndDev is Cool!"));
            httppost.setEntity(new UrlEncodedFormEntity(nameValuePairs));

            // Execute HTTP Post Request
            HttpResponse response = httpclient.execute(httppost);

        } catch (ClientProtocolException e) {
            // TODO Auto-generated catch block
        } catch (IOException e) {
            // TODO Auto-generated catch block
        }

   }
}

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