Android中"get","post"请求的其中三种常用数据提交方式，android常用数据
Android中"get","post"请求的其中三种常用数据提交方式，android常用数据
一.使用HttpURLConnection提交数据
"get"请求
代码:
String path = "http://地址?数据1名字=" + URLEncoder.encode(数据1,"utf-8") + "&数据2名字=" +URLEncoder.encode(数据2,"utf-8");
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
//这里设置请求方式要写为大写
conn.setRequestMethod("GET");
conn.setConnectTimeout(5000);
int code = conn.getResponseCode();
if(code == 200){
InputStream is = conn.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int len = -1;
byte[] buffer = new byte[1024];
while ((len = is.read(buffer)) != -1) {
baos.write(buffer, 0, len);
}
is.close();
//这样就得到服务器返回的数据了
result = baos.toString();
}
"post"请求
URL url = new URL(path);
HttpURLConnection conn = (HttpURLConnection)url.openConnection();
//1这里设置请求方式要写为大写
conn.setRequestMethod("POST");
//设置响应时长
conn.setConnectTimeout(5000);
//2设置http请求数据的类型为表单类型
conn.setRequestProperty("Content-type","application/x-www-form-urlencoded");
String data = "数据1名字=" +URLEncoder.encode(数据1,"utf-8") + "&数据2名字=" + URLEncoder.encode(数据2,"utf-8");
//3设置给服务器写的数据的长度
conn.setRequestProperty("Content-Length",String.valueOf(data.length()));
//4指定要给服务器写数据
conn.setDoOutput(true);
//5开始向服务器写数据
conn.getOutputStream().write(data.getBytes);
int code = conn.getResponseCode();
if(code == 200){
InputStream is = conn.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();
int len = -1;
byte[] buffer = new byte[1024];
while ((len = is.read(buffer)) != -1) {
baos.write(buffer, 0, len);
}
is.close();
//注意:这里回流的编码默认是"utf-8"的
result = baos.toString();
}
二.使用HttpClient提交数据
注:HttpClient会被内置到Android SDK中,可以不添加任何额外jar包直接使用,将文件从com文件夹复制粘贴到项目下就可以使用了
Get方式:
String path = "http://地址?数据1名字=" + URLEncoder.encode(数据1,"utf-8") + "&数据2名字" + URLEncoder.encode(数据2,"utf-8");
//可以将其过程理解为用户浏览器操作
//1打开浏览器
HttpClient client = new DefaultHttpClient();
//2输入地址
HttpGet httpGet = new HttpGet(path);
//3敲回车
HttpResponse response = client.execute(httpGet);
//获取状态码
int code = response.getStatusLine().getStatusCode();
Post方式:
String path = "http://地址";
//1打开浏览器
HttpClient client = new DefaultHttpClient();
//2输入地址
HttpPost httpPost = new HttpPost(path);
List<NameValuePair> parameters = new ArrayList<NameValuePair>();
parameters.add(new BasicNameValuePair("数据1名字",数据1));
parameters.add(new BasicNameValuePair("数据2名字",数据1));
httpPost.setEntity(new UrlEncodedFormEntity(parameters,"utf-8"));
//3敲回车
HttpResponse response = client.execute(httpPost);
//4获取状态码
int code = response.getStatusLine().getStatusCode();
三.使用AsyncHttpClient框架提交数据
该源码可以在网上下载
将下载好的的源码中src目录中源码拷贝到自己的工程的src目录下
GET方式:
//请求路径
String path = "http://地址?数据1名字=" + URLEncoder.encode(数据1) + "&数据2名字" + URLEncoder.encode(数据2);
AsyncHttpClient client = new AsyncHttpClient();
client.get(path,new AsyncHttpResponseHandler() {
public void onSuccess(int statusCode,Header[]headers,byte[]responseBody){
//请求成功
new String(responseBody);//返回的数据
}
public void onFailure(int statusCode,Header[]headers,byte[]responseBody,Throwable error) {
//请求失败
String(responseBody);
}
});
POST方式:
String path = "http://地址";
AsyncHttpClient client = new AsyncHttpClient();
RequestParams params = new RequestParams();
params.put("数据1名字",数据1);
params.put("数据2名字",数据2);
client.post(path,params,new AsyncHttpResponseHandler() {
public void onSuccess(int statusCode,Header[]headers,byte[]responseBody){
//请求成功
new String(responseBody);//返回的数据
}
public void onFailure(int statusCode,Header[]headers,byte[]responseBody,Throwable error) {
//请求失败
String(responseBody);
}
});
以上就是基本代码了,写的不好希望大家不要见怪,也希望和大家多多交流.