小编AHm*_*Net的帖子

我想使用Maven制作web项目自动导入我需要的所有库,所以我选择了 "maven-archetype-webpp"

之后我在pom.xml文件上出现了这个错误:

Description Resource Path Location Type Failure to transfer org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 from http://repo.maven.apache.org/maven2 was cached in the local repository, resolution will not be reattempted until the update interval of central has elapsed or updates are forced. Original error: Could not transfer artifact org.apache.maven.plugins:maven-surefire-plugin:pom:2.12.4 from/to central (http://repo.maven.apache.org/maven2): The operation was cancelled. pom.xml /SpringTuto line 1 Maven Configuration Problem

我已经更新了我的Maven项目,但没有结果!

POM.XML:

<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
  <modelVersion>4.0.0</modelVersion>
  <groupId>com.pre.example</groupId>
  <artifactId>SpringTuto</artifactId>
  <packaging>war</packaging>
  <version>0.0.1-SNAPSHOT</version>
  <name>SpringTuto Maven Webapp</name>
  <url>http://maven.apache.org</url>
  <dependencies>
    <dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>3.8.1</version>
      <scope>test</scope> …

你能解释一下如何设置数据库配置的端口号:

class MY_Model extends CI_Model 
{
    protected static $db2_loaded = false;
    protected static $db2 = false;
    function __construct() 
    {
        parent::__construct();
        if(($this->session->userdata('login_user')!=false) && !self::$db2_loaded) 
        { 
            self::$db2_loaded = true;
            $config['hostname'] = "localhost";      
            $config['username'] = "root";
            $config['password'] = "";
            $config['database'] = $this->session->userdata('bdd_compte');
            $config['dbdriver'] = "mysql";
            $config['dbprefix'] = "";
            $config['pconnect'] = TRUE;
            $config['db_debug'] = TRUE;
            $config['cache_on'] = FALSE;
            $config['cachedir'] = "";
            $config['char_set'] = "utf8";

            $config['dbcollat'] = "utf8_general_ci";
            self::$db2 = $this->load->database($config,TRUE);

        }
        $this->db = self::$db2;


    }
}

任何想法我应该如何设置不同的端口号

谢谢!

我正在使用AutoCompleteTextView.Its工作正常,但下拉文本始终是白色背景上的白色文本.这张照片解释了我的问题

图片解释我的问题

XML:

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    android:background="#000"
    >
    <!-- <AutoCompleteTextView  -->
    <AutoCompleteTextView
        android:id="@+id/text"
        android:layout_width="fill_parent" 
        android:layout_height="wrap_content"
        android:hint="Tapez votre 1texte"
        android:textColor="#000"        
        />
</LinearLayout>

Java的:

view = (AutoCompleteTextView)findViewById(R.id.text);        
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_dropdown_item_1line,data);
adapter.setDropDownViewResource(R.drawable.ic_action_search);//dd
view.setAdapter(adapter);

我正在尝试将Font Awesome集成到JSF中.

<h:outputStylesheet library="font-awesome" name="css/font-awesome.min.css" />

但是浏览器找不到字体文件.它们显示为空方块:

我希望它们如下所示:

这是怎么造成的,我该如何解决？

有什么办法可以中止 react-native app 上的 fetch 请求吗？

class MyComponent extends React.Component {
  state = { data: null };

  componentDidMount = () =>
    fetch('http://www.example.com')
      .then(data => this.setState({ data }))
      .catch(error => {
        throw error; 
      });

  cancelRequest = () => {
   //???
  };

  render = () => <div>{this.state.data ? this.state.data : 'loading'}</div>;
}

我尝试了课堂上的abort功能，AbortController但它不起作用！！

...
abortController = new window.AbortController();

cancelRequest =  () => this.abortController.abort();

componentDidMount = () =>
        fetch('http://www.example.com', { signal: this.abortController.signal })
          ....

请任何帮助！

我正在尝试使用java捕获外部程序的输出,但我不能.

我有代码来显示它,但不是把它放到变量中.

我将使用,例如,sqlplus执行我的oracle代码"into exec.sql"system/orcl @ orcl:user/password/DB name

public static String test_script () {
        String RESULT="";
        String fileName = "@src\\exec.sql";
        String sqlPath = ".";
        String arg1="system/orcl@orcl";
        String sqlCmd = "sqlplus";


        String arg2   = fileName;
        try {
            String line;
            ProcessBuilder pb = new ProcessBuilder(sqlCmd, arg1, arg2);
            Map<String, String> env = pb.environment();
            env.put("VAR1", arg1);
            env.put("VAR2", arg2);
            pb.directory(new File(sqlPath));
            pb.redirectErrorStream(true);
            Process p = pb.start();
          BufferedReader bri = new BufferedReader
            (new InputStreamReader(p.getInputStream()));

          while ((line = bri.readLine()) != null) {

              RESULT+=line;

          }


          System.out.println("Done.");
        }
        catch (Exception …

是否有可能使用GSON或JAVA上的任何其他库将匿名对象类型序列化为JSON？

Object objResult = new Object() {
                boolean success = true;
                String  email="mail@gmail.com";
            };

String jsonstr = gson.toJson(objResult);

在此示例中,字符串jsonstr返回空值.

Web浏览器如何区分HTML5和HTML4？

我使用 angular 6 构建了一个反应式表单，该表单包含 3 个属性（姓名、年龄、电话），我只想获取更改后的值而不是所有表单值。

this.refClientForm = this.formBuilder.group({
  name: [],
  phone: [],
  age: []
});

对于表单侦听器：

 this.refClientForm.valueChanges.subscribe(values => console.log(values))

但我总是得到所有形式的价值。

我的问题是我想在另一个控制器中使用POST DATA而不是GET重定向到操作

RedirectToAction("GenaraleExportPDF", "ExportController", new { 

screendata = json, monTitre = monTitre, file = file, block1 = block1, block2 = block2, block3 = block3, block4 = block4 

});

这个例子说明了重定向但是在GET Action上.