Android Okhttp工具类
Android Okhttp工具类的封装（okhttpUtils）
近期的项目频繁使用到了网络交互，采用的是第三方类库okhttp
以下是我对okhttp主要使用到的方法进行的封装。
github源码地址：https://github.com/square/okhttp
主要是分为以下三种使用模式（post请求）
- post请求(参数+cookie)
- post请求(单文件+参数+cookie)
- post请求(多文件+参数+cookie)
下面是代码
代码中的变量声明
private static volatile OkhttpUtil instance;
private static final String TAG = "OkhttpUtil";
public static Handler handler = new Handler();
private final HashMap<String, List<Cookie>> cookieStore = new HashMap<>();
双重检测锁-单例模式
/**
* 双重检测锁-单例模式
*
* @return
*/
public static OkhttpUtil getInstance() {
if (instance == null) {
synchronized (OkhttpUtil.class) {
if (instance == null) {
instance = new OkhttpUtil();
}
}
}
return instance;
}
然后是post请求(参数+cookie)
/**
* @网络请求--post请求(参数+cookie)
* url地址，map是参数集合，name是header的key，value是header的value,CallBack回调方法
*/
public void postParameter(String url, Map<String, String> map, String name, String value, final CallBack callback) {
OkHttpClient okHttpClient = new OkHttpClient.Builder().cookieJar(new CookieJar() {
@Override
public void saveFromResponse(HttpUrl httpUrl, List<Cookie> list) {//存储用户身份凭证
cookieStore.put(httpUrl.host(), list);
}
@Override
public List<Cookie> loadForRequest(HttpUrl httpUrl) {
List<Cookie> cookies = cookieStore.get(httpUrl.host());
return cookies != null ? cookies : new ArrayList<Cookie>();
}
}).build();
MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
for (Map.Entry<String, String> entry : map.entrySet()) {//遍历map集合进行添加
builder.addFormDataPart(entry.getKey(), entry.getValue());
}
MultipartBody requestBody = builder.build();
final Request request = new Request.Builder()
.url(url)
.post(requestBody)
.header(name, value)//将身份凭证作为头参数，访问时携带发送
.build();
Call call = okHttpClient.newCall(request);
call.enqueue(new okhttp3.Callback() {
@Override
public void onFailure(Call call, final IOException e) {
Log.e(TAG, "onFailure:" + e.getCause().getStackTrace() + e.getMessage());
handler.post(new Runnable() {
@Override
public void run() {
callback.onFailed( e);
}
});
}
@Override
public void onResponse(Call call, Response response) throws IOException {
if (response.isSuccessful()) {
final String result = response.body().string();
handler.post(new Runnable() {
@Override
public void run() {
callback.onSuccess( result);
}
});
}
}
});
}
下面是post请求(参数+cookie)使用时的代码
private void post() {
OkhttpUtil okhttpUtil = new OkhttpUtil();
String url = "这里是所要访问的url地址;
Map<String, String> map = new HashMap<>();//参数map集合
map.put("account", account);//向map集合中添加参数
map.put("pw", pw);
okhttpUtil.postParameter(url, map, new CallBack() {
@Override
public void onSuccess(String request) {//回调访问成功
final Gson gson = new Gson();
loginBean newsBean = gson.fromJson(request, loginBean.class);//解析传回的json数据
String message = newsBean.getMessage(); //获取传回的message
}
@Override
public void onFailed(Exception e) {//回调访问失败
Toast.makeText(LoginActivity.this, "网络错误", Toast.LENGTH_SHORT).show();
}
});
}
好了，以上就是post请求(参数+cookie)的使用过程
那么下面就是 post请求(单文件+参数+cookie)了
/**
* @网络请求--post请求(单文件+参数+cookie)
* url地址，map是参数集合，f是文件，name是header的key，value是header的value,CallBack回调方法
*/
public void postFileCookie(String url, String f, Map<String, String> map, String name, String value, final CallBack callback) {
OkHttpClient okHttpClient = new OkHttpClient.Builder().cookieJar(new CookieJar() {
@Override
public void saveFromResponse(HttpUrl httpUrl, List<Cookie> list) {
cookieStore.put(httpUrl.host(), list);
}
@Override
public List<Cookie> loadForRequest(HttpUrl httpUrl) {
List<Cookie> cookies = cookieStore.get(httpUrl.host());
return cookies != null ? cookies : new ArrayList<Cookie>();
}
}).build();
MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
for (Map.Entry<String, String> entry : map.entrySet()) {
builder.addFormDataPart(entry.getKey(), entry.getValue());
}
File file = new File(f);
if (file != null) {
builder.addFormDataPart("file", file.getName(),
RequestBody.create(MediaType.parse("file/*"), file));
}
MultipartBody requestBody = builder.build();
Request request = new Request.Builder()
.url(url)
.header(name, value)
.post(requestBody)
.build();
Call call = okHttpClient.newCall(request);
call.enqueue(new okhttp3.Callback() {
@Override
public void onFailure(Call call, final IOException e) {
Log.e(TAG, "onFailure:" + e.getCause().getStackTrace() + e.getMessage());
handler.post(new Runnable() {
@Override
public void run() {
callback.onFailed( e);
}
});
}
@Override
public void onResponse(Call call, Response response) throws IOException {
final String result = response.body().string();
handler.post(new Runnable() {
@Override
public void run() {
callback.onSuccess(result);
}
});
}
});
}
下面是post请求(单文件+参数+cookie)使用时的代码
private void post() {
OkhttpUtil okhttpUtil = new OkhttpUtil();
String url = "这里是所要访问的url地址";
Map<String, String> map = new HashMap<>();
map.put("enterprise", "enterprise");//向map集合中添加参数
map.put("checklogid", checklogid);
okhttpUtil.postFileCookie(url, savedFile, map, "cookie", "JSESSIONID=" + getToken(), new CallBack() {
@Override
public void onSuccess(String request) {//请求成功
final Gson gson = new Gson();
updateBean newsBean = gson.fromJson(request, updateBean.class);//解析传回的json数据
String message = newsBean.getMessage();//获取想要拿到的数据
}
@Override
public void onFailed(Exception e) {//请求失败
Toast.makeText(getActivity(), "网络错误", Toast.LENGTH_SHORT).show();
}
});
}
以下是post请求(多文件+参数+cookie)
/**
* @网络请求--post请求(多文件+参数+cookie)
* url地址，map是参数集合，list是文件集合，name是header的key，value是header的value,CallBack回调方法
*/
public void postFileParameterCookie(String url, Map<String, String> map, List<String> list, String name, String value, final CallBack callback) {
if (list.size() > 0) {
OkHttpClient okHttpClient = new OkHttpClient.Builder().cookieJar(new CookieJar() {
@Override
public void saveFromResponse(HttpUrl httpUrl, List<Cookie> list) {
cookieStore.put(httpUrl.host(), list);
}
@Override
public List<Cookie> loadForRequest(HttpUrl httpUrl) {
List<Cookie> cookies = cookieStore.get(httpUrl.host());
return cookies != null ? cookies : new ArrayList<Cookie>();
}
}).build();
MultipartBody.Builder builder = new MultipartBody.Builder().setType(MultipartBody.FORM);
for (int i = 0; i < list.size(); i++) {遍历集合中的文件
File file = new File(list.get(i));
if (file != null) {
builder.addFormDataPart("file", file.getName(),
RequestBody.create(MediaType.parse("file/*"), file));
}
}
for (Map.Entry<String, String> entry : map.entrySet()) {
builder.addFormDataPart(entry.getKey(), entry.getValue());
}
MultipartBody requestBody = builder.build();
Request request = new Request.Builder()
.url(url)
.header(name, value)//身份标识
.post(requestBody)
.build();
Call call = okHttpClient.newCall(request);
call.enqueue(new okhttp3.Callback() {
@Override
public void onFailure(Call call, final IOException e) {//访问失败
Log.e(TAG, "onFailure:" + e.getCause().getStackTrace() + e.getMessage());
handler.post(new Runnable() {
@Override
public void run() {
callback.onFailed(e);
}
});
}
@Override
public void onResponse(Call call, Response response) throws IOException {//访问成功
final String result = response.body().string();
handler.post(new Runnable() {
@Override
public void run() {
callback.onSuccess(result);
}
});
}
});
}
}
下面是post请求(多文件+参数+cookie)使用时的代码
private void post(List<String> list) {
String url = "访问的url地址";
OkhttpUtil okhttpUtil = new OkhttpUtil();
Map<String, String> map= new HashMap<>();
map.put("rectifyday", rectifyday); //向map中添加参数
map.put("treatmethod", treatmethod);
okhttpUtil.postFileParameterCookie(url, map, list, "cookie", "JSESSIONID=" + getToken(), new CallBack() {
@Override
public void onSuccess(String request) {
final Gson gson = new Gson();
updateBean newsBean = gson.fromJson(request, updateBean.class);//解析传回的json数据
String message = newsBean.getMessage();//获取想要拿到的数据
}
@Override
public void onFailed( Exception e) {
Toast.makeText(UpdateActivity.this, "网络错误", Toast.LENGTH_SHORT).show();
}
});
}
其中的CallBack是另写的一个接口，代码如下：
public interface CallBack{
void onSuccess(String request);
void onFailed(Exception e);
}
以上就是我对okhttp的封装。
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