OkHttp3使用
导入依赖:implementation 'com.squareup.okhttp3:okhttp:4.6.0'
wiki:点击进入Github
一、GET请求
1、创建OkHttpClient对象,最好使用单例模式:
okHttpClient = new OkHttpClient.Builder()
.retryOnConnectionFailure(true)
.connectTimeout(time_out, TimeUnit.SECONDS)
.writeTimeout(time_out, TimeUnit.SECONDS)
.readTimeout(time_out, TimeUnit.SECONDS)
.build();
2、构造请求:
Request request = new Request.Builder()
.url(url)
.build();
3、处理响应结果
okHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
// handling exception
}
@Override
public void onResponse(Call call, Response response) {
// Handling response results
}
});
二、POST请求
1、创建OkHttpClient对象:
okHttpClient = new OkHttpClient.Builder()
.retryOnConnectionFailure(true)
.connectTimeout(time_out, TimeUnit.SECONDS)
.writeTimeout(time_out, TimeUnit.SECONDS)
.readTimeout(time_out, TimeUnit.SECONDS)
.build();
2、构建请求体RequestBody:
// 参数
Map<String, String> params = new HashMap<>();
FormBody.Builder builder = new FormBody.Builder();
for (Map.Entry entry : params.entrySet()) {
builder.add((String) entry.getKey(), (String) entry.getValue());
}
RequestBody requestBody = builder.build();
return new Request.Builder()
.url(url)
.post(requestBody)
.build();
3、处理响应结果
okHttpClient.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
// handling exception
}
@Override
public void onResponse(Call call, Response response) {
// Handling response results
}
});
这里是简单的网络请求方法,真正开发中肯定少不止这么简单,比如你有一些公共参数,你总不能没创建一个请求都添加一次,所以要添加功能参数就可以在拦截器中做;再比如要对请求参数做加密处理等;拦截器的功能很强大,请移步下一篇。