okHttp都已经出到3.2.0了,现在才开始要用到它,感觉自己好low~~
根据平时自己的习惯,还是自己做一下封装,让代码撸起来更加顺畅一点!
okhttp-3.2.0和okio-1.7.0就不多说
首先建一个OkHttpUtils的类
- /**
- * HTTP通讯结构处理器
- *
- */
- public class OkHttpUtils {
- private static final byte[] LOCKER = new byte[0];
- private static OkHttpUtils mInstance;
- private OkHttpClient mOkHttpClient;
- private OkHttpUtils() {
- okhttp3.OkHttpClient.Builder ClientBuilder=new okhttp3.OkHttpClient.Builder();
- ClientBuilder.readTimeout(30, TimeUnit.SECONDS);//读取超时
- ClientBuilder.connectTimeout(10, TimeUnit.SECONDS);//连接超时
- ClientBuilder.writeTimeout(60, TimeUnit.SECONDS);//写入超时
- mOkHttpClient=ClientBuilder.build();
- }
- public static OkHttpUtils getInstance() {
- if (mInstance == null) {
- synchronized (LOCKER) {
- if (mInstance == null) {
- mInstance = new OkHttpUtils();
- }
- }
- }
- return mInstance;
- }
- }
以上的代码和网上其他okhttp3的写法是不一样的。一般网上的代码是下面这样的
- mOkHttpClient = new OkHttpClient.Builder()
- .readTimeout(30, TimeUnit.SECONDS)
- .connectTimeout(10, TimeUnit.SECONDS)
- .writeTimeout(60, TimeUnit.SECONDS)
- .build();
为什么要突出这样的变化,和Builder为什么还要把包名的前缀一起写出来尼,主要就是因为OKhttp3中有很多不同类型的Builder,为了后面可以更好的和Map<K, V>结合起来,所以才这么写的
- Request request = new Request.Builder()
- .url("")
- .post()
- .addHeader("", "")
- .build();
在我现在公司的项目中,我们的接口请求,不管是get还是post,在请求的时候是要用到请求头的,也就是上面 addHeader("", ""),而且还是不止一个请求头,如果像上面那么写的话,那样就很难和Map<K, V>结合起来,所以用写了下面这样的一个方法
- /**
- * 设置请求头
- * @param headersParams
- * @return
- */
- private Headers SetHeaders(Map<String, String> headersParams){
- Headers headers=null;
- okhttp3.Headers.Builder headersbuilder=new okhttp3.Headers.Builder();
- if(headersParams != null)
- {
- Iterator<String> iterator = headersParams.keySet().iterator();
- String key = "";
- while (iterator.hasNext()) {
- key = iterator.next().toString();
- headersbuilder.add(key, headersParams.get(key));
- Log.d("get http", "get_headers==="+key+"===="+headersParams.get(key));
- }
- }
- headers=headersbuilder.build();
- return headers;
- }
不止有header("","")和addHeader("","")这两个方法,其实还有一个headers()!有了headers(),前面的header("","")和addHeader("","")这两个方法这两个方法就可以不用了。
同时注意了,这个Builder和最上面的Builder不是同一个类型的,所以在后面的代码中,每一个Builder都是把前面的包名也一起写出来的
- Request request = new Request.Builder()
- .url("")
- .post()
- .headers(把上面的SetHeaders()方法返回的headers放到这里就行).build();
那么,有了上面OKhttp3中添加请求头的方法了,那后面的RequestBody那也就是也一样有的喽,所以下面就写了两个post的方法
第一个:
- /**
- * post请求参数
- * @param BodyParams
- * @return
- */
- private RequestBody SetRequestBody(Map<String, String> BodyParams){
- RequestBody body=null;
- okhttp3.FormBody.Builde formEncodingBuilder=new okhttp3.FormBody.Builder();
- if(BodyParams != null){
- Iterator<String> iterator = BodyParams.keySet().iterator();
- String key = "";
- while (iterator.hasNext()) {
- key = iterator.next().toString();
- formEncodingBuilder.add(key, BodyParams.get(key));
- Log.d("post http", "post_Params==="+key+"===="+BodyParams.get(key));
- }
- }
- body=formEncodingBuilder.build();
- return body;
- }
第二个是用来上传图片的:
- /**
- * Post上传图片的参数
- * @param BodyParams
- * @param fileParams
- * @return
- */
- private RequestBody SetFileRequestBody(Map<String, String> BodyParams,Map<String, String> fileParams){
- //带文件的Post参数
- RequestBody body=null;
- <span style="color:#ff0000;">okhttp3.MultipartBody.Builder</span> MultipartBodyBuilder=new okhttp3.MultipartBody.Builder();
- MultipartBodyBuilder.setType(MultipartBody.FORM);
- RequestBody fileBody = null;
- if(BodyParams != null){
- Iterator<String> iterator = BodyParams.keySet().iterator();
- String key = "";
- while (iterator.hasNext()) {
- key = iterator.next().toString();
- MultipartBodyBuilder.addFormDataPart(key, BodyParams.get(key));
- Log.d("post http", "post_Params==="+key+"===="+BodyParams.get(key));
- }
- }
- if(fileParams != null){
- Iterator<String> iterator = fileParams.keySet().iterator();
- String key = "";
- int i=0;
- while (iterator.hasNext()) {
- key = iterator.next().toString();
- i++;
- MultipartBodyBuilder.addFormDataPart(key, fileParams.get(key));
- Log.d("post http", "post_Params==="+key+"===="+fileParams.get(key));
- fileBody = RequestBody.create(HttpVariable.Media_Type.MEDIA_TYPE_PNG, new File(fileParams.get(key)));
- MultipartBodyBuilder.addFormDataPart(key, i+".png", fileBody);
- }
- }
- body=MultipartBodyBuilder.build();
- return body;
- }
当然,还有一个最简单的get的连接拼接方法了
- /**
- * get方法连接拼加参数
- * @param mapParams
- * @return
- */
- private String setUrlParams( Map<String, String> mapParams){
- String strParams = "";
- if(mapParams != null){
- Iterator<String> iterator = mapParams.keySet().iterator();
- String key = "";
- while (iterator.hasNext()) {
- key = iterator.next().toString();
- strParams += "&"+ key + "=" + mapParams.get(key);
- }
- }
- return strParams;
- }
参数和Map<K, V>结合的问题已经解决啦,后面的就是接口数据的问题了,我一般用的json解析工具是gson,所以我写了5个方法来为我以后调用。
第一个是get的调用,调用成功后会自动用gson把返回的json解析成一个实体类的Bean,下面就是这个方法的代码,后面还有调用的方法
- /**
- * get方法获取实体bean
- * @param reqUrl UR连接
- * @param headersParams 请求头参数
- * @param params 请求参数
- * @param object 标签
- * @param mHandler
- * @param rspClass 实体类 执行命令获取指定结构 rspClass : 所需转出的结构,例:UserBean.class
- */
- ublic void getBeanExecute(String reqUrl, Map<String, String> headersParams, Map<String, String> params,
- Object object,final Handler mHandler, final Class<?> rspClass){
- okhttp3.Request.Builder RequestBuilder=new okhttp3.Request.Builder();
- RequestBuilder.url(reqUrl+setUrlParams(params));//添加URL地址
- RequestBuilder.headers(SetHeaders(headersParams));//添加请求头
- RequestBuilder.tag(object);//添加请求标签
- Request request=RequestBuilder.build();
- Log.d("get http", "get_url==="+request.url());
- Call call = mOkHttpClient.newCall(request);
- call.enqueue(new Callback() {
- @Override
- public void onFailure(Call arg0, IOException arg1) {
- // TODO Auto-generated method stub
- Log.d("get http", "get_onFailure==="+arg1.toString());
- Message mess = mHandler.obtainMessage();//
- mess.what = 404;
- mess.obj = "通讯错误-020";
- mHandler.sendMessage(mess);
- }
- @Override
- public void onResponse(Call arg0, Response arg1) throws IOException {
- // TODO Auto-generated method stub
- Log.d("get http", "get_code==="+arg1.code());
- String Result = "";
- Message mess = mHandler.obtainMessage();
- if (arg1.code() == 200) {
- Result = arg1.body().string();
- Log.d("get http", "get==="+Result);
- try {
- Gson gson = new Gson();
- // 转换返回结果信息
- JsonBean jsonBean = new JsonBean();
- JSONObject jsonObject = new JSONObject(Result.toString());
- jsonBean.setMsg(jsonObject.optString("msg"));
- jsonBean.setCode(jsonObject.optString("code"));
- String strData = "";
- Object dataBean = null;
- if (jsonBean.getCode().equals(HttpVariable.ERROR_CODE.SUCCESS)) {
- jsonBean.setResult(jsonObject.optString("result"));
- if (!TextUtils.isEmpty(jsonBean.getResult())) {
- if (jsonBean.getResult().substring(0, 1).equals("[")) {
- String srt = jsonBean.getResult();
- strData = srt.substring(1, srt.length() - 1);
- } else {
- strData = jsonBean.getResult();
- }
- }
- dataBean = rspClass.newInstance();
- if (!TextUtils.isEmpty(strData)) {
- dataBean = gson.fromJson(strData, rspClass);
- }
- }
- if (jsonBean.getCode().equals(HttpVariable.ERROR_CODE.SUCCESS)) {
- mess.what = Integer.valueOf(jsonBean.getCode());
- if (!TextUtils.isEmpty(strData)) {
- mess.obj = dataBean;
- } else {
- mess.obj = jsonBean.getMsg();
- }
- } else {
- mess.what = Integer.valueOf(jsonBean.getCode());
- mess.obj = jsonBean.getMsg();
- }
- } catch (Exception e) {
- mess.what = 404;
- mess.obj = "数据异常-021";
- }
- } else {
- mess.what = arg1.code();
- mess.obj = "通讯异常-"+arg1.code();
- }
- mHandler.sendMessage(mess);
- }
- });
{"code":"0","msg":"成功","result":{"aqi":39,"area":"广州","pm2_5":22,"quality":"优","weather":"晴","temperature_min":"21","temperature_max":"31"}}
这是接口拿到的数据
看到这样的数据结构,我就会先建一个wrather的实体类bean
- import java.io.Serializable;
- /**
- * 天气Bean
- * @author Kevin
- *
- */
- public class WeatherBean implements Serializable{
- private static final long serialVersionUID = 1L;
- /**
- * aqi 空气质量指数 字符串
- area 区域 字符串
- pm2_5 pm2.5
- quality 空气质量
- level 空气质量等级
- weather 天气描述
- temperature_now 当前温度
- temperature_min 最低温度
- temperature_max 最高温度
- */
- private String aqi;
- private String area;
- private String pm2_5;
- private String quality;
- private String level;
- private String weather;
- private String temperature_now;
- private String temperature_min;
- private String temperature_max;
- public String getAqi() {
- return aqi;
- }
- public void setAqi(String aqi) {
- this.aqi = aqi;
- }
- public String getArea() {
- return area;
- }
- public void setArea(String area) {
- this.area = area;
- }
- public String getPm2_5() {
- return pm2_5;
- }
- public void setPm2_5(String pm2_5) {
- this.pm2_5 = pm2_5;
- }
- public String getQuality() {
- return quality;
- }
- public void setQuality(String quality) {
- this.quality = quality;
- }
- public String getLevel() {
- return level;
- }
- public void setLevel(String level) {
- this.level = level;
- }
- public String getWeather() {
- return weather;
- }
- public void setWeather(String weather) {
- this.weather = weather;
- }
- public String getTemperature_now() {
- return temperature_now;
- }
- public void setTemperature_now(String temperature_now) {
- this.temperature_now = temperature_now;
- }
- public String getTemperature_min() {
- return temperature_min;
- }
- public void setTemperature_min(String temperature_min) {
- this.temperature_min = temperature_min;
- }
- public String getTemperature_max() {
- return temperature_max;
- }
- public void setTemperature_max(String temperature_max) {
- this.temperature_max = temperature_max;
- }
- }
调用的方法如下:
- //这里可以写在单独一个接口类里面,在Activity中直接用一行代码来调用这个方法,这样就不会把代码复杂货
- Map<String, String> headersdatas = new HashMap<String, String>();//这里是添加你的请求头参数
- headersdatas.put("", "");
- headersdatas.put("", "");
- headersdatas.put("", "");
- Map<String, String> datas = new HashMap<String, String>();//这里是拼接的请求参数
- datas.put("", "");
- datas.put("", "");
- datas.put("", "");
- OkHttpUtils.getInstance().getBeanExecute("你的接口url", headersdatas, datas,this, mHandler,WeatherBeanclass);
-
- /**
- * 获取天气信息
- */
- private Handler mHandler=new Handler(){
- @Override
- public void handleMessage(Message msg) {
- // TODO Auto-generated method stub
- if (msg.what==0) {//请求成功
- try {
- WeatherBean weatherBean=new WeatherBean();
- weatherBean=(WeatherBean) msg.obj;//拿到接口返回的天气的实体类
- .....//这里省略的代码就是数据拿到后操作UI部分
- } catch (Exception e) {
- // TODO: handle exception
- }
- }else{
- LogOut.showToast(getApplicationContext(), (String) msg.obj);
- }
- }
- };