小编Mul*_*ard的帖子

我有以下JSON来表示salt请求的服务器响应:

{
    "USER":
    {
        "E_MAIL":"email",
        "SALT":"salt"
    },
    "CODE":"010"
}

我试图用以下POJO映射它:

public class SaltPOJO {
    private String code = null;
    private User user = null;

    @Override
    public String toString() {
        return this.user.toString();
    }

    public String getCode() {
        return code;
    }
    public void setCode(String code) {
        this.code = code;
    }
    public User getUser() {
        return user;
    }
    public void setUser(User user) {
        this.user = user;
    }

    public class User {
        private String e_mail = null;
        private String salt = null;

        @Override
        public …

我Fragment在“ onNewIntent活动”中重新创建时遇到问题：

public class MessageActivity extends NavigationActivity {
    private FragmentManager fragmentManager = null;
    private MessageFragment fragment = null;

    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);

        this.fragmentManager = this.getSupportFragmentManager();
        this.fragment = (MessageFragment) this.fragmentManager.findFragmentByTag(FragmentTags.MESSAGE.getValue());

        if (savedInstanceState == null) {
            this.fragment = new MessageFragment();
            this.fragmentManager.beginTransaction().replace(R.id.menu_slide_main_content, this.fragment, FragmentTags.MESSAGE.getValue()).commit();
        }
    }

    @Override
    public void onNewIntent(Intent intent) {
        super.onNewIntent(intent);

        this.setIntent(intent);
        this.fragmentManager = this.getSupportFragmentManager();
        this.fragment = (MessageFragment) this.fragmentManager.findFragmentByTag(FragmentTags.MESSAGE.getValue());

        if(fragment == null) {
            this.fragment = new MessageFragment();
        }

        this.fragmentManager.beginTransaction().replace(R.id.menu_slide_main_content, this.fragment, FragmentTags.MESSAGE.getValue()).commit();
    }
}

在Fragment …

我有一个简单的对象:

@Value
@Builder
public class User implements Serializable {
    private final String userId;
    private final String email;
    private final String name;
}

这里没有魔法,除了我Lombok 1.18.2在这里使用@Value和@Builder注释的事实.所有这些都适用于Java 10和Gradle 4.10.现在我升级到Java 11和Gradle 5.2,然后突然得到:

> Task :application:compileJava
/src/application/src/main/java/com/rbb/tutor/user/model/User.java:12: error: variable userId not initialized in the default constructor
    private final String userId;
                         ^
/src/application/src/main/java/com/rbb/tutor/user/model/User.java:13: error: variable email not initialized in the default constructor
    private final String email;
                         ^
/src/application/src/main/java/com/rbb/tutor/user/model/User.java:14: error: variable name not initialized in the default constructor
    private final String …

我为eclipse juno安装了glassfish3工具,我在我的电脑上安装了glassfish3,位于C:\ glassfish3下.

我用eclipse创建了一个带有glassfish3工具的新服务器,所有设置都正确.

当我现在想要启动galssfish服务器时,我收到错误:

bootstrap jar not found

没有其他的.没有更多细节,也没有日志输出.

我怎样才能让我的玻璃鱼运转？

我从orientdb控制台创建了一个数据库:

create database plocal:/C:/Development/orientdb/databases/testdb root root plocal graph

我启动了服务器以确保我的数据库已成功创建.我打开了网络界面:

localhost:2480

我使用rootas user和rootpassword 登录testdb .一切都很好.但是,当我现在想要从Java代码连接到我的数据库时:

    OrientGraph graph = null;

    try {
        graph = new OrientGraph("plocal:C:/Development/orientdb/databases/testdb", "root", "root");

        System.out.println("success");
    } catch(OException e) {
        System.out.println("no success - " + e.getMessage());

        e.printStackTrace();
    } finally {
        if(graph != null) {
            graph.shutdown();
        }
    }

我得到以下异常:

Exception in thread "main" com.orientechnologies.orient.core.exception.OSecurityAccessException: User or password not  valid for database: 'testdb'
at com.orientechnologies.orient.core.metadata.security.OSecurityShared.authenticate(OSecurityShared.java:150)
at com.orientechnologies.orient.core.metadata.security.OSecurityProxy.authenticate(OSecurityProxy.java:83)
at com.orientechnologies.orient.core.db.record.ODatabaseRecordAbstract.open(ODatabaseRecordAbstract.java:128)
at com.orientechnologies.orient.core.db.ODatabaseWrapperAbstract.open(ODatabaseWrapperAbstract.java:49)
at com.orientechnologies.orient.core.db.graph.OGraphDatabase.open(OGraphDatabase.java:92)
at de.hof.iisys.relationExtraction.freebase.tinkerpop.DAO.openGraph(DAO.java:30)
at de.hof.iisys.relationExtraction.freebase.main.Main.main(Main.java:44) …

我必须在全屏模式下开发一个应用程序，现在我有一个带有一些textEdits和一些按钮的公式编辑器。如果键盘弹出，它将隐藏两个按钮，因此我将所有内容都放入了滚动视图：

    <ScrollView xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:padding="10dip"
    tools:context="controller.RegsiterActivity" >

    <LinearLayout
        android:layout_width="fill_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical" >

        <TextView
            android:id="@+id/register_textview_firstname"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dip"
            android:singleLine="true"
            android:text="@string/text_firstname" />

        <EditText
            android:id="@+id/register_textedit_firstname"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dip"
            android:inputType="text" />

        <TextView
            android:id="@+id/register_textview_lastname"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dip"
            android:singleLine="true"
            android:text="@string/text_lastname" />

        <EditText
            android:id="@+id/register_textedit_lastname"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dip"
            android:inputType="text" />

        <TextView
            android:id="@+id/register_textview_email"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dip"
            android:singleLine="true"
            android:text="@string/text_email" />

        <EditText
            android:id="@+id/register_textedit_email"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dip"
            android:inputType="textEmailAddress" />

        <TextView
            android:id="@+id/register_text_password"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="5dip"
            android:singleLine="true"
            android:text="@string/text_password" />

        <EditText
            android:id="@+id/register_textedit_password"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:layout_marginBottom="10dip"
            android:inputType="text" />

        <Button
            android:id="@+id/register_button_register"
            android:layout_width="fill_parent"
            android:layout_height="wrap_content"
            android:text="@string/button_register" /> …

我无法安装Visual Studio的Community Edition 2013.我总是收到以下错误消息:

Visual Studio Professional 2013 is currently installed on this machine. 
Please uninstall Visual Studio Professional 2013 and retry.

这里的问题是我从未安装过Visual Studio Professional 2013.我安装了Visual Studio Express 2013并卸载了它,因为它不想启动.那为什么告诉我这样的废话？即使我搜索Visual Studio,我也无法在计算机上找到任何内容.

如何安装Community Edition？

我定义了一个渐变可绘制：

<?xml version="1.0" encoding="UTF-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"
    android:shape="rectangle" >

    <gradient
        android:endColor="#2F3F59"
        android:startColor="#4078A7"
        android:type="linear"
        android:angle="90" />

</shape>

我将它设置在我的工具栏上：

<style name="AppTheme.Toolbar" parent="ThemeOverlay.AppCompat.Dark.ActionBar">
    <item name="android:textColorPrimary">@color/textcolorsecundary</item>
    <item name="actionMenuTextColor">@color/textcolorsecundary</item>
    <item name="android:textColorSecondary">@color/textcolorsecundary</item>
    <item name="android:background">@drawable/custom_background_blue</item>
</style>

这是有效的！但是：

这就是标题发生的情况。它得到相同的梯度。这看起来真的很丑，所以我必须改变它。如何将该信息文本的背景设置为透明？

在Android API 22之前,我只是执行以下操作:

/**
 * 
 * @param url
 * @param params
 * @return
 * @throws ClientProtocolException
 * @throws IOException
 */
public InputStream getStreamFromConnection(String url, List<NameValuePair> params) throws ClientProtocolException, IOException {
    if(ConnectionDetector.isConnectedToInternet(this.context)) {
        DefaultHttpClient httpClient = new DefaultHttpClient();
        HttpPost httpPost = new HttpPost(url);
        httpPost.setEntity(new UrlEncodedFormEntity(params, "utf-8"));

        HttpResponse httpResponse = httpClient.execute(httpPost);
        HttpEntity httpEntity = httpResponse.getEntity();

        return httpEntity.getContent();
    } else {
        return null;
    }
}

在上面的代码几乎所有的东西都被弃用(NameValuePair,DefaultHttpClient,HttpPost,UrlEncodedFormEntity,HttpResponse,HttpEntity,ClientProtocolException),我不能找到一个建议的方式在API 22+做.我现在该怎么办？

请查看以下CodePen.在那里你可以看到我的自定义范围输入.我希望显示滑块的刻度位置,为此我添加了datalist:

fieldset {
    border: 2px solid #48530D;
    padding-top: 27px;
        padding-right: 20px;
        padding-bottom: 0px;
        padding-left: 20px;
}

input[type=range] {
    -webkit-appearance: none;
    width: 100%;
    margin: 4px 0;
}

input[type=range]:focus {
    outline: none;
}

input[type=range]::-webkit-slider-runnable-track {
    width: 100%;
    height: 8px;
    cursor: pointer;
    box-shadow: 0px 0px 0px rgba(0, 0, 0, 0), 0px 0px 0px rgba(13, 13, 13, 0);
    background: #a4b162;
    border-radius: 0px;
    border: 1px solid rgba(0, 0, 0, 0);
}

input[type=range]::-webkit-slider-thumb {
    box-shadow: 0px 0px 0px #000000, 0px 0px 0px #0d0d0d;
    border: …