本文节选自《Netkiller Java 手札》
Netkiller Java 手札
Mr. Neo Chan, 陈景峯(BG7NYT)
中国广东省深圳市望海路半岛城邦三期 518067 +86 13113668890 <netkiller@msn.com>
$Id: book.xml 606 2013-05-29 09:52:58Z netkiller $
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34.10. Android Oauth2 + Jwt example
Oauth 返回数据,通过 Gson 的 fromJson 存储到下面类中。
package cn.netkiller.okhttp.pojo; public class Oauth { private String access_token; private String token_type; private String refresh_token; private String expires_in; private String scope; private String jti; public String getAccess_token() { return access_token; } public void setAccess_token(String access_token) { this.access_token = access_token; } public String getToken_type() { return token_type; } public void setToken_type(String token_type) { this.token_type = token_type; } public String getRefresh_token() { return refresh_token; } public void setRefresh_token(String refresh_token) { this.refresh_token = refresh_token; } public String getExpires_in() { return expires_in; } public void setExpires_in(String expires_in) { this.expires_in = expires_in; } public String getScope() { return scope; } public void setScope(String scope) { this.scope = scope; } public String getJti() { return jti; } public void setJti(String jti) { this.jti = jti; } @Override public String toString() { return "Oauth{" + "access_token='" + access_token + '\'' + ", token_type='" + token_type + '\'' + ", refresh_token='" + refresh_token + '\'' + ", expires_in='" + expires_in + '\'' + ", scope='" + scope + '\'' + ", jti='" + jti + '\'' + '}'; } }
Activity 文件
package cn.netkiller.okhttp; import android.support.v7.app.AppCompatActivity; import android.os.Bundle; import android.util.Log; import android.widget.TextView; import com.google.gson.Gson; import java.io.IOException; import cn.netkiller.okhttp.pojo.Oauth; import okhttp3.Authenticator; import okhttp3.Call; import okhttp3.Callback; import okhttp3.Credentials; import okhttp3.FormBody; import okhttp3.OkHttpClient; import okhttp3.Request; import okhttp3.RequestBody; import okhttp3.Response; import okhttp3.Route; public class Oauth2jwtActivity extends AppCompatActivity { private TextView token; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_oauth2jwt); token = (TextView) findViewById(R.id.token); try { get(); } catch (IOException e) { e.printStackTrace(); } } public static Oauth accessToken() throws IOException { OkHttpClient client = new OkHttpClient.Builder().authenticator( new Authenticator() { public Request authenticate(Route route, Response response) { String credential = Credentials.basic("api", "secret"); return response.request().newBuilder().header("Authorization", credential).build(); } } ).build(); String url = "https://api.netkiller.cn/oauth/token"; RequestBody formBody = new FormBody.Builder() .add("grant_type", "password") .add("username", "blockchain") .add("password", "123456") .build(); Request request = new Request.Builder() .url(url) .post(formBody) .build(); Response response = client.newCall(request).execute(); if (!response.isSuccessful()) { throw new IOException("服务器端错误: " + response); } Gson gson = new Gson(); Oauth oauth = gson.fromJson(response.body().string(), Oauth.class); Log.i("oauth", oauth.toString()); return oauth; } public void get() throws IOException { OkHttpClient client = new OkHttpClient.Builder().authenticator( new Authenticator() { public Request authenticate(Route route, Response response) throws IOException { return response.request().newBuilder().header("Authorization", "Bearer " + accessToken().getAccess_token()).build(); } } ).build(); String url = "https://api.netkiller.cn/misc/compatibility"; Request request = new Request.Builder() .url(url) .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { call.cancel(); } @Override public void onResponse(Call call, Response response) throws IOException { final String myResponse = response.body().string(); runOnUiThread(new Runnable() { @Override public void run() { Log.i("oauth", myResponse); token.setText(myResponse); } }); } }); } public void post() throws IOException { OkHttpClient client = new OkHttpClient.Builder().authenticator( new Authenticator() { public Request authenticate(Route route, Response response) throws IOException { return response.request().newBuilder().header("Authorization", "Bearer " + accessToken().getAccess_token()).build(); } } ).build(); String url = "https://api.netkiller.cn/history/create"; String json = "{\n" + " \"assetsId\": \"5bced71c432c001c6ea31924\",\n" + " \"title\": \"添加信息\",\n" + " \"message\": \"信息内容\",\n" + " \"status\": \"录入\"\n" + "}"; final MediaType JSON = MediaType.parse("application/json; charset=utf-8"); RequestBody body = RequestBody.create(JSON, json); Request request = new Request.Builder() .url(url) .post(body) .build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { call.cancel(); } @Override public void onResponse(Call call, Response response) throws IOException { final String myResponse = response.body().string(); runOnUiThread(new Runnable() { @Override public void run() { // Gson gson = new Gson(); // Oauth oauth = gson.fromJson(myResponse, Oauth.class); // Log.i("oauth", oauth.toString()); token.setText(myResponse); } }); } }); } }
上面的例子演示了,怎样获取 access token 以及 HTTP 基本操作 GET 和 POST,再Restful接口中还可能会用到 PUT, DELETE 等等,原来相同,这里就不在演示。
34.11. HTTP/2
首先确认你的服务器是支持 HTTP2,HTTP2配置方法可以参考 《Netkiller Web 手札》
下面是我的例子仅供参考,Nginx 开启 http2 代理后面的 Spring Cloud 接口。
server { listen 80; listen 443 ssl http2; server_name api.netkiller.cn; ssl_certificate ssl/netkiller.cn.crt; ssl_certificate_key ssl/netkiller.cn.key; ssl_session_cache shared:SSL:20m; ssl_session_timeout 60m; charset utf-8; access_log /var/log/nginx/api.netkiller.cn.access.log; error_page 497 https://$host$uri?$args; if ($scheme = http) { return 301 https://$server_name$request_uri; } location / { proxy_pass http://127.0.0.1:8000; proxy_http_version 1.1; proxy_set_header Host $host; proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for; } #error_page 404 /404.html; # redirect server error pages to the static page /50x.html # error_page 500 502 503 504 /50x.html; location = /50x.html { root /usr/share/nginx/html; } # deny access to .htaccess files, if Apache's document root # concurs with nginx's one # #location ~ /\.ht { # deny all; #} }
安卓程序如下
String url = "https://api.netkiller.cn/member/json"; OkHttpClient client = new OkHttpClient(); Request request = new Request.Builder().url(url).build(); client.newCall(request).enqueue(new Callback() { @Override public void onFailure(Call call, IOException e) { Log.d("okhttp", "Connect timeout. " + e.getMessage()); } @Override public void onResponse(Call call, Response response) throws IOException { String text = response.body().string(); Log.d("okhttp", "HTTP Code " + response.code() + " TEXT " + text); Log.d("okhttp", "Protocol: " + response.protocol()); } });
运行结果
D/okhttp: HTTP Code 200 TEXT {"status":false,"reason":"","code":0,"data":{"id":null,"username":"12322228888","mobile":"12322228888","password":"123456","wechat":"微信ID","role":"Organization","captcha":null,"createDate":"2018-10-25 09:25:23","updateDate":null}} Protocol: h2
输出 h2 表示当前接口与服务器连接是通过 http2 完成。
Oauth2 + Jwt 的 SpringBoot 实现方法可以参考作者的《Netkiller Spring Cloud 手札》