Okhttp3封装带保存cookie
第一步：在android studio的Module中引用
implementation 'com.squareup.okhttp3:okhttp:3.10.0'
implementation 'com.github.franmontiel:PersistentCookieJar:v1.0.1'
使用 PersistentCookieJar 也要在主项目 allprojects 中添加如下一行代码
allprojects {
repositories {
google()
jcenter()
//这是添加的代码
maven { url "https://jitpack.io" }
}
}
第二步：就是写个 或者在网上找个关于Okhttp的工据类
####代码如下：
package com.ljp.downdemo.utils;
import android.content.Context;
import android.os.Handler;
import android.os.Looper;
import android.util.Log;
import com.franmontiel.persistentcookiejar.ClearableCookieJar;
import com.franmontiel.persistentcookiejar.PersistentCookieJar;
import com.franmontiel.persistentcookiejar.cache.SetCookieCache;
import com.franmontiel.persistentcookiejar.persistence.SharedPrefsCookiePersistor;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.util.HashMap;
import java.util.Iterator;
import java.util.Map;
import okhttp3.Call;
import okhttp3.Callback;
import okhttp3.FormBody;
import okhttp3.Headers;
import okhttp3.MediaType;
import okhttp3.MultipartBody;
import okhttp3.OkHttpClient;
import okhttp3.Request;
import okhttp3.RequestBody;
import okhttp3.Response;
/**
* 作者：admin
* 时间：2018/5/23 0023
* 用途：
*/
public class UtilsOKHttp {
private static OkHttpClient client;
private volatile static UtilsOKHttp manager;
private Handler handler;
private UtilsOKHttp(Context context) {
ClearableCookieJar cookieJar =
new PersistentCookieJar(new SetCookieCache(), new SharedPrefsCookiePersistor(context));
client = new OkHttpClient.Builder()
.cookieJar(cookieJar)
.build();
handler = new Handler(Looper.getMainLooper());
}
public static UtilsOKHttp getInstance(Context context) {
if (manager == null) {
manager = new UtilsOKHttp(context);
}
return manager;
}
public void get(String url, final OKCallback callBack) {
get(url, null, callBack);
}
public void get(String url, HashMap<String, String> params, final OKCallback callBack) {
if (params != null && params.size() > 0) {
url = makeGetUrl(url, params);
}
final Request request = new Request.Builder().url(url).get().build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
e.printStackTrace();
onFailJsonStringMethod("请求失败", callBack);
}
@Override
public void onResponse(Call call, final Response response) throws IOException {
if (response != null && response.isSuccessful()) {
onSuccessJsonStringMethod(response.body().string(), callBack);
} else {
onFailJsonStringMethod("请求失败", callBack);
}
}
});
}
/**
* 下载地址
*
* @param url
* @param savePath
* @throws Exception
*/
public void downFile(final String url, final String savePath, final OKCallback okCallback) throws Exception {
if (url != null && savePath != null) {
if (new File(savePath).exists()) {
Request request = new Request.Builder()
.url(url)
.addHeader("Connection", "close")
.build();
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
e.printStackTrace();
onFailJsonStringMethod(e.getMessage(), okCallback);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
InputStream is = null;
byte[] buf = new byte[2048];
int len = 0;
FileOutputStream fos = null;
try {
is = response.body().byteStream();
long total = response.body().contentLength();
File file = new File(savePath, url.substring(url.lastIndexOf("/") + 1));
fos = new FileOutputStream(file);
long sum = 0;
while ((len = is.read(buf)) != -1) {
fos.write(buf, 0, len);
sum += len;
int progress = (int) (sum * 1.0f / total * 100);
Log.e("aaa", "download progress : " + progress);
onProcessMethod(progress, okCallback);
}
fos.flush();
fos.close();
//成功以后返回file的地址
onSuccessJsonStringMethod(file.getAbsolutePath(), okCallback);
} catch (Exception e) {
e.printStackTrace();
}
}
});
} else {
throw new FileNotFoundException("找不到存放地址");
}
} else {
throw new NullPointerException("参数为空");
}
}
/**
* post 模拟表单提交
*/
public void post(String url, HashMap<String, String> params, final OKCallback callBack) {
FormBody.Builder form_builder = new FormBody.Builder();
//表单对象，包含以input开始的对象，以html表单为主
if (params != null && !params.isEmpty()) {
for (Map.Entry<String, String> entry : params.entrySet()) {
form_builder.add(entry.getKey(), entry.getValue());
}
}
RequestBody request_body = form_builder.build();
Request request = new Request.Builder().url(url).post(request_body).build();
//采用post方式提交
client.newCall(request).enqueue(new Callback() {
@Override
public void onFailure(Call call, IOException e) {
e.printStackTrace();
onFailJsonStringMethod("请求失败", callBack);
}
@Override
public void onResponse(Call call, Response response) throws IOException {
if (response != null && response.isSuccessful()) {
onSuccessJsonStringMethod(response.body().string(), callBack);
} else {
onFailJsonStringMethod("请求失败", callBack);
}
}
});
}
/**
* post请求上传文件....包括图片....流的形式传任意文件...
* 参数1 url
* file表示上传的文件
* fileName....文件的名字,,例如aaa.jpg
* params ....传递除了file文件 其他的参数放到map集合
*/
public static void uploadBase64Img(String url, String img, String fileName, Map<String, String> params, Callback callback) {
//创建OkHttpClient请求对象
//MultipartBody多功能的请求实体对象,,,formBody只能传表单形式的数据
MultipartBody.Builder builder = new MultipartBody.Builder();
builder.setType(MultipartBody.FORM);
builder.addPart(
Headers.of("Content-Disposition", "form-data; name=\"fileBytes\""),
RequestBody.create(MediaType.parse("text/plain;charset=ISO-8859-1"), img))
.addPart(
Headers.of("Content-Disposition", "form-data; name=\"serviceType\""),
RequestBody.create(MediaType.parse("application/json;charset=UTF-8"), fileName + ""));
//参数
if (params != null) {
for (String key : params.keySet()) {
builder.addFormDataPart(key, params.get(key));
}
}
//构建
MultipartBody multipartBody = builder.build();
//创建Request
Request request = new Request.Builder().url(url).post(multipartBody).build();
//得到Call
Call call = client.newCall(request);
//执行请求
call.enqueue(callback);
}
/**
* post请求上传文件....包括图片....流的形式传任意文件...
* 参数1 url
* file表示上传的文件
* fileName....文件的名字,,例如aaa.jpg
* params ....传递除了file文件 其他的参数放到map集合
*/
public static void uploadFile(String url, File file, String fileName, Map<String, String> params, Callback callback) {
//创建OkHttpClient请求对象
//MultipartBody多功能的请求实体对象,,,formBody只能传表单形式的数据
MultipartBody.Builder builder = new MultipartBody.Builder();
builder.setType(MultipartBody.FORM);
//参数
if (params != null) {
for (String key : params.keySet()) {
builder.addFormDataPart(key, params.get(key));
}
}
//文件...参数name指的是请求路径中所接受的参数...如果路径接收参数键值是fileeeee,
//此处应该改变
builder.addFormDataPart("file", fileName, RequestBody.create(MediaType.parse("application/octet-stream"), file));
//构建
MultipartBody multipartBody = builder.build();
//创建Request
Request request = new Request.Builder().url(url).post(multipartBody).build();
//得到Call
Call call = client.newCall(request);
//执行请求
call.enqueue(callback);
}
/**
* 请求返回的结果是json字符串 * * @param jsonValue * @param callBack
*/
private void onSuccessJsonStringMethod(final String jsonValue, final OKCallback callBack) {
handler.post(new Runnable() {
@Override
public void run() {
if (callBack != null) {
try {
callBack.onSuccess(jsonValue);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
private void onProcessMethod(final int i, final OKCallback callBack) {
handler.post(new Runnable() {
@Override
public void run() {
if (callBack != null) {
try {
callBack.onProcess(i);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
private void onFailJsonStringMethod(final String str, final OKCallback callBack) {
handler.post(new Runnable() {
@Override
public void run() {
if (callBack != null) {
try {
callBack.onFail(str);
} catch (Exception e) {
e.printStackTrace();
}
}
}
});
}
public interface OKCallback {
void onSuccess(String result);
void onProcess(int i);
void onFail(String failResult);
}
/**
* 拼接get的url * * @param params * @return
*/
private String makeGetUrl(String oldUrl, HashMap<String, String> params) {
String url = oldUrl;
// 添加url参数
if (params != null) {
Iterator<String> it = params.keySet().iterator();
StringBuffer sb = null;
while (it.hasNext()) {
String key = it.next();
String value = params.get(key);
if (sb == null) {
sb = new StringBuffer();
sb.append("?");
} else {
sb.append("&");
}
sb.append(key);
sb.append("=");
sb.append(value);
}
url += sb.toString();
}
return url;
}
}