小编Mou*_*diz的帖子

使用Redis Java客户端Jedis
如何缓存Java对象？

我收到了这个错误

   java.io.IOException: Content-Length and stream length disagree

在这行代码上 return response.body().bytes();

这是完整的代码

编辑:在一些谷歌之后,错误的原因来自okhttp lib

if (contentLength != -1L && contentLength != bytes.size.toLong()) {
  throw IOException(
      "Content-Length ($contentLength) and stream length (${bytes.size}) disagree")
}

但是如何解决这个问题？

编辑:

这是完整的代码:

public class OkHttpHandler extends AsyncTask<Void, Void, byte[]> {

    private final String Fetch_URL = "http://justedhak.comlu.com/get-data.php";
    ArrayList<Listitem> Listitem;
    int resulta;

    OkHttpClient httpClient = new OkHttpClient();

    String myJSON;
    JSONArray peoples = null;
    InputStream inputStream = null;

    @Override
    protected byte[] doInBackground(Void... params) {
        Log.d("e", "dddddddddd");
        Log.d("e", Fetch_URL);

        Request.Builder …

我想将系统表user_tab_cols中的一些数据保存到临时表中,以便从中获取转储.

其中有100,000行,我从user_tab_cols中选择了大约1,000条记录,并使用此查询将它们保存到临时表中:

create table temp table as 
select * from user_tab_cols where condition...

我有错误'非法使用longtype',因为列DATA_DEFAULT包含long类型.

有没有一种改变方式,我可以将长型存储到anotehr表中？

我在Android开发人员上使用Volley跟踪图像兑现教程,我遇到了请求图像请求并缓存它的问题,我想因为我创建的singelton(从教程中复制).

我的Eclipse给出了错误,getInstance(this)因为这是上下文,我想要一个图像.

ImageRequest request = new ImageRequest(
    url,
    new Response.Listener<Bitmap>() {
        @Override
        public void onResponse(Bitmap bitmap) {
            mNetworkImageView = (NetworkImageView) findViewById(R.id.ImageView);
            mImageLoader = MySingleton.getInstance(this).getImageLoader();
            mNetworkImageView.setImageUrl(IMAGE_URL, mImageLoader);
        //  mImageLoader = MySingleton.getInstance(this).getImageLoader();
        //  mImageLoader.get(IMAGE_URL, ImageLoader.getImageListener(mImageView,
        //      R.drawable.ic_launcher, R.drawable.ic_launcher));
            }
        },
    0,
    0,
    null,
    new Response.ErrorListener() {
        public void onErrorResponse(VolleyError error) {
        //  mImageView.setImageResource(R.drawable.ic_launcher);
        }
    });
MySingleton.getInstance(this).addToRequestQueue(request);

这是单身人士:

package com.example.p;

import com.android.volley.Request;
import com.android.volley.RequestQueue;
import com.android.volley.toolbox.ImageLoader;
import com.android.volley.toolbox.Volley;

import android.content.Context;
import android.graphics.Bitmap;
import android.support.v4.util.LruCache;

public class MySingleton …

我有以下错误Hostname domain.com not verified:不是"javax.net.ssl.SSLPeerUnverifiedException: peer not authenticated"我以前能够连接到不同的主机,在这个主机我遇到问题,如何解决它

 javax.net.ssl.SSLPeerUnverifiedException: Hostname domain.com not verified:
    certificate: sha1//WQM9QbrKs6DCFa9qN/EIw1ywBw=
    DN: CN=*.ipage.com,OU=Domain Control Validated - RapidSSL(R),OU=See www.rapidssl.com/resources/cps (c)14,OU=GT29505539
    subjectAltNames: [*.ipage.com, ipage.com]
            at com.squareup.okhttp.Connection.connectTls(Connection.java:244)
            at com.squareup.okhttp.Connection.connectSocket(Connection.java:199)
            at com.squareup.okhttp.Connection.connect(Connection.java:172)
            at com.squareup.okhttp.Connection.connectAndSetOwner(Connection.java:367)
            at com.squareup.okhttp.OkHttpClient$1.connectAndSetOwner(OkHttpClient.java:128)
            at com.squareup.okhttp.internal.http.HttpEngine.connect(HttpEngine.java:328)
            at com.squareup.okhttp.internal.http.HttpEngine.sendRequest(HttpEngine.java:245)
            at com.squareup.okhttp.Call.getResponse(Call.java:267)

这是我的代码

  try {
                    JSONObject jsonObject = new JSONObject();
                    jsonObject.accumulate("name", name);
                    jsonObject.accumulate("password", pass);
                    jsonObject.accumulate("email", emails);
                    json = jsonObject.toString();
                    Log.e("MYAPP", "getjson");

                } catch (JSONException e) {
                    Log.e("MYAPP", "unexpected JSON exception", e);
                }
                try{
                    RequestBody formBody = new …

用于配置文件的CONNECT_TIME的定义,根据oracle 文档

CONNECT_TIME
指定会话的总运行时间限制,以分钟为单位.

我猜他们所说的连接时间是整个过程执行的时间.

有没有办法限制在过程中执行查询的连接时间？例如,如果过程有3个执行查询,并且任何查询超过指定的时间限制,则应中止或终止该会话.

老实说，在询问之前我对此进行了一些搜索。如何从活动接收意图fragmentactivity我正在尝试使用viewpager。我在获取参数时遇到错误Bundle extras = getArguments();

public class SingleViewActivity extends FragmentActivity {
    ImageView   imageView;
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_page_view);

   ArrayList<Listitem> personArrayList = new ArrayList<Listitem>();
       // Listitem item = new Listitem("1", "http://developer.android.com/assets/images/android_logo.png");//I used to add it staticly

        Bundle extras = getArguments();
        if (extras != null) {
            extras = extras.getParcelableArrayList(ARG_PERSON_LIST);
            personArrayList.add(item);        }
    //    DemoObjectFragment f = DemoObjectFragment.newInstance(personArrayList);

        ViewPager    mViewPager = (ViewPager) findViewById(R.id.pager);
        Log.d("s", "singleview");


        DemoCollectionPagerAdapter mDemoCollectionPagerAdapter =      new DemoCollectionPagerAdapter( getSupportFragmentManager(),personArrayList);
        mViewPager.setAdapter(mDemoCollectionPagerAdapter);

这是我第一次使用onscroll监听器.我的问题是每次向下滚动时如何获取20个新行？

我理解当我向下滚动网格视图时,将执行此代码.

public void onScroll(AbsListView view, int firstVisibleItem,
                             int visibleItemCount, int totalItemCount) {
            // TODO Auto-generated method stub

            this.currentFirstVisibleItem = firstVisibleItem;
            this.currentVisibleItemCount = visibleItemCount;
            this.totalItem = totalItemCount;

            if ((totalItemCount - visibleItemCount) <= (firstVisibleItem + 20)) {
               // the below when executed will get all the rows ,I only need 20 rows
             handler.execute().get();

            }
        }

这是我的代码

// the load more in the grid view, fetch new images.
mGridView.setOnScrollListener(new AbsListView.OnScrollListener() {
    private int currentVisibleItemCount;
    private int currentScrollState;
    private int currentFirstVisibleItem;
    private int …

我如何只获得当前时间？

select getdate()

给我:

Dec 16 2016  5:41PM

我想要这个结果:

5:41PM

如何将uri图像的路径发送到另一个活动并将其转换为图像.我试过以下

  protected void onActivityResult(int requestCode, int resultCode, Intent data) {

             super.onActivityResult(requestCode, resultCode, data);

              if (requestCode == 1 && resultCode == RESULT_OK && data != null && data.getData() != null) {

                  //file name
                     Uri selectedImage = data.getData();

                     Intent i = new Intent(this,
                              AddImage.class);
                    i.putExtra("imagePath", selectedImage);
                    startActivity(i);

并得到这样的

 String imagePath = getIntent().getStringExtra("imagePath");
            imageview.setImageURI(Uri.parse(imagePath ));