摘要：
本次来记录下OkHttpClient的使用，OkHttpClient是用来完成android客户端对服务端请求的工具。cannotresolvesymbolOkHttpClient这里需要引入implementation'com.squareup.okhttp3:okhttp:3.0.1'然后刷新下项目就可以了。代码：packagecom.example.administrator.testclient;importcom.squareup.*;importjava.io.IOException;importokhttp3.FormBody;importokhttp3.MediaType;importokhttp3.OkHttpClient;importokhttp3.Request;importokhttp3.RequestBody;importokhttp3.Response;publicclassBaseHttpClient{publicstaticfinalMediaTypeMEDIA_TYPE_MARKDOWN=MediaType.parse;//01.定义okhttpprivatefinalOkHttpClientclient=newOkHttpClient();publicBaseHttpClient(){//client.connectTimeoutMillis();}/***发送一个表单请求*@throwsException*/publicvoidSendForm()throwsException{RequestBodyformBody=newFormBody.Builder().add.build();Requestrequest=newRequest.Builder().url.post.build();Responseresponse=client.newCall.execute();if(!response.isSuccessful())thrownewIOException;System.out.println;}/**POST请求*发送一个From请求*@throwsException*/publicvoidSendPostFrom()throwsException{RequestBodybody=newFormBody.Builder().add//添加参数体.add.build();Requestrequest=newRequest.Builder().post//请求参数.url.build();Responseresponse=client.newCall.execute();if(!response.isSuccessful())thrownewIOException;}}测试发现，上面的用不了，下面放一个测试通过的方法：publicvoidgetDatasyncFactory(){newThread(newRunnable(){@Overridepublicvoidrun(){try{OkHttpClientclient=newOkHttpClient();//创建OkHttpClient对象Requestrequest=newRequest.Builder().url("http://123.207.70.54:8080/SpringMvc/hello")//请求接口。如果需要传参拼接到接口后面。
本次来记录下OkHttpClient的使用，OkHttpClient是用来完成android 客户端对服务端请求的工具。
首先记住，使用网络的时候一定要加入权限，加入到AndroidMainfest.xml中
<uses-permission android:name="android.permission.INTERNET" />
在初次使用的时候会出现报错。cannot resolve symbol OkHttpClient
这里需要引入
implementation 'com.squareup.okhttp3:okhttp:3.0.1'
然后刷新下项目就可以了。
代码：
packagecom.example.administrator.testclient; import com.squareup.*; importjava.io.IOException; importokhttp3.FormBody; importokhttp3.MediaType; importokhttp3.OkHttpClient; importokhttp3.Request; importokhttp3.RequestBody; importokhttp3.Response; public classBaseHttpClient { public static finalMediaType MEDIA_TYPE_MARKDOWN = MediaType.parse("text/x-markdown; charset=utf-8"); //01. 定义okhttp private final OkHttpClient client = newOkHttpClient(); publicBaseHttpClient(){ //client.connectTimeoutMillis(); } /** * 发送一个表单请求 * @throwsException */ public void SendForm() throwsException { RequestBody formBody = newFormBody.Builder() .add("search", "Jurassic Park") .build(); Request request = newRequest.Builder() .url("https://en.wikipedia.org/w/index.php") .post(formBody) .build(); Response response =client.newCall(request).execute(); if (!response.isSuccessful()) throw new IOException("Unexpected code " +response); System.out.println(response.body().string()); } /**POST 请求 * 发送一个string请求 * @throwsException */ public void SendPostString() throwsException { String postBody = "" + "Releases " + "-------- " + " " + " * _1.0_ May 6, 2013 " + " * _1.1_ June 15, 2013 " + " * _1.2_ August 11, 2013 "; Request request = newRequest.Builder() .url("https://api.github.com/markdown/raw") .post(RequestBody.create(MEDIA_TYPE_MARKDOWN, postBody)) .build(); Response response =client.newCall(request).execute(); if (!response.isSuccessful()) throw new IOException("Unexpected code " +response); System.out.println(response.body().string()); } /**POST 请求 * 发送一个From请求 * @throwsException */ public void SendPostFrom() throwsException { RequestBody body = newFormBody.Builder() .add("name", "sy")//添加参数体 .add("age", "18") .build(); Request request = newRequest.Builder() .post(body) //请求参数 .url("http://123.207.70.54:8080/SpringMvc/hello") .build(); Response response =client.newCall(request).execute(); if (!response.isSuccessful()) throw new IOException("Unexpected code " +response); } /**Get请求 * 发送一个From请求 * @throwsException */ public void SendGetFrom() throwsException { Request request = newRequest.Builder() .get() //请求参数 .url("http://123.207.70.54:8080/SpringMvc/hello") .build(); Response response =client.newCall(request).execute(); if (!response.isSuccessful()) throw new IOException("Unexpected code " +response); } }
测试发现，上面的用不了，下面放一个测试通过的方法：
public void getDatasyncFactory(){
new Thread(new Runnable() {
@Override
public void run() {
try {
OkHttpClient client = new OkHttpClient();//创建OkHttpClient对象
Request request = new Request.Builder()
.url("http://123.207.70.54:8080/SpringMvc/hello")//请求接口。如果需要传参拼接到接口后面。
.build();//创建Request 对象
Response response = null;
response = client.newCall(request).execute();//得到Response 对象
if (response.isSuccessful()) {
Log.d("kwwl","response.code()=="+response.code());
Log.d("kwwl","response.message()=="+response.message());
Log.d("kwwl","res=="+response.body());
//此时的代码执行在子线程，修改UI的操作请使用handler跳转到UI线程。
}
} catch (Exception e) {
e.printStackTrace();
}
}
}).start();
}返回信息：
