okhttp3带cookie请求
Request请求经常都要携带Cookie，request创建时可以通过header设置参数，Cookie也是参数之一。就像下面这样：
Request request =new Request.Builder()
.url(url)
.header("Cookie","xxx")
.build();
然后可以从返回的response里得到新的Cookie，你可能得想办法把Cookie保存起来。
但是OkHttp可以不用我们管理Cookie，自动携带，保存和更新Cookie。
方法是在创建OkHttpClient设置管理Cookie的CookieJar
privatefinal HashMap> cookieStore =newHashMap<>();
OkHttpClient okHttpClient =new OkHttpClient.Builder()
.cookieJar(new CookieJar() {
@Override
publicvoidsaveFromResponse(HttpUrl httpUrl, List list) {
cookieStore.put(httpUrl.host(), list);
}
@Override
publicList loadForRequest(HttpUrl httpUrl) {
List cookies = cookieStore.get(httpUrl.host());
returncookies !=null? cookies :newArrayList();
}
})
.build();
这样以后发送Request都不用管Cookie这个参数也不用去response获取新Cookie什么的了。还能通过cookieStore获取当前保存的Cookie。
服务器使用shiro做登录校验及权限验证的时候,app端访问时就要带上cookie，不然请求会提示未登录
privatevoid postAsynHttp() {
mOkHttpClient=new OkHttpClient.Builder()
.cookieJar(new CookieJar() {
privatefinal HashMap> cookieStore =newHashMap<>();
@Override
publicvoidsaveFromResponse(HttpUrl url, List cookies) {
cookieStore.put(url, cookies);
cookieStore.put(HttpUrl.parse("http://192.168.31.231:8080/shiro-2"), cookies);
for(Cookie cookie:cookies){
System.out.println("cookie Name:"+cookie.name());
System.out.println("cookie Path:"+cookie.path());
}
}
@Override
publicList loadForRequest(HttpUrl url) {
List cookies = cookieStore.get(HttpUrl.parse("http://192.168.31.231:8080/shiro-2"));
if(cookies==null){
System.out.println("没加载到cookie");
}
returncookies !=null? cookies :newArrayList();
}
})
.build();
RequestBody formBody =new FormBody.Builder()
.add("username","admin")
.add("password","admin")
.build();
final Request request =new Request.Builder()
.url("http://192.168.31.231:8080/shiro-2/shiro-login")
.post(formBody)
.build();
Call call = mOkHttpClient.newCall(request);
call.enqueue(new Callback() {
@Override
publicvoid onFailure(Call call, IOException e) {
}
@Override
publicvoid onResponse(Call call, Response response) throws IOException {
String str = response.body().string();
Log.i("wangshu", str);
runOnUiThread(new Runnable() {
@Override
publicvoid run() {
showProgress(false);
Toast.makeText(getApplicationContext(), "请求成功", Toast.LENGTH_SHORT).show();
}
});
}
});
}
