最近一直想着封装个网络请求框架,但是看到有很多博客有封装而且还不错,于是就想着封装一个安卓带的,以便自己以后使用.
一,请求成功和失败回调接口
public interface OnResponseListner {
void onSucess(String response);
void onError(String error);
}
二,post&get请求方法工具类
public class HttpUtlis {
/**
*get请求封装
*/
public static void getRequest(String url, Map<String,String> params, String encode,OnResponseListner listner) {
StringBuffer sb = new StringBuffer(url);
sb.append("?");
if (params!=null && !params.isEmpty()){
for (Map.Entry<String,String> entry:params.entrySet()) { //增强for遍历循环添加拼接请求内容
sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
}
sb.deleteCharAt(sb.length()-1);
if (listner!=null) {
try {
URL path = new URL(sb.toString());
if (path!=null) {
HttpURLConnection con = (HttpURLConnection) path.openConnection();
con.setRequestMethod("GET"); //设置请求方式
con.setConnectTimeout(3000); //链接超时3秒
con.setDoOutput(true);
con.setDoInput(true);
OutputStream os = con.getOutputStream();
os.write(sb.toString().getBytes(encode));
os.close();
if (con.getResponseCode() == 200) { //应答码200表示请求成功
onSucessResopond(encode, listner, con);
}
}
} catch (Exception error) {
error.printStackTrace();
onError(listner, error);
}
}
}
}
/**
* POST请求
*/
public static void postRequest(String url,Map<String,String> params,String encode,OnResponseListner listner){
StringBuffer sb = new StringBuffer();
if (params!=null && !params.isEmpty()){
for (Map.Entry<String,String> entry: params.entrySet()) {
sb.append(entry.getKey()).append("=").append(entry.getValue()).append("&");
}
sb.deleteCharAt(sb.length()-1);
}
if (listner!=null) {
try {
URL path = new URL(url);
if (path!=null){
HttpURLConnection con = (HttpURLConnection) path.openConnection();
con.setRequestMethod("POST"); //设置请求方法POST
con.setConnectTimeout(3000);
con.setDoOutput(true);
con.setDoInput(true);
byte[] bytes = sb.toString().getBytes();
OutputStream outputStream = con.getOutputStream();
outputStream.write(bytes);
outputStream.close();
if (con.getResponseCode()==200){
onSucessResopond(encode, listner, con);
}
}
} catch (Exception e) {
e.printStackTrace();
onError(listner, e);
}
}
}
private static void onError(OnResponseListner listner,Exception onError) {
listner.onError(onError.toString());
}
private static void onSucessResopond(String encode, OnResponseListner listner, HttpURLConnection con) throws IOException {
InputStream inputStream = con.getInputStream();
ByteArrayOutputStream baos = new ByteArrayOutputStream();//创建内存输出流
int len = 0;
byte[] bytes = new byte[1024];
if (inputStream != null) {
while ((len = inputStream.read(bytes)) != -1) {
baos.write(bytes, 0, len);
}
String str = new String(baos.toByteArray(), encode);
listner.onSucess(str);
}
}
}
三,activity中使用直接类名静态方法调用
String url="";
String encode="utf-8";
public void GET(View view){
Map<String,String> map=new HashMap<>();
map.put("userName","");
map.put("pwd","");
HttpUtlis.getRequest(url, map,encode, new OnResponseListner() {
@Override
public void onSucess(String response) {
}
@Override
public void onError(String error) {
}
});
}