Android Studio，Db 连接错误：发生异常情况导致驱动程序失败.请报告此异常

我开始这次讨论是因为我有一个关于我正在从事的Android学校项目的大问题.

该数据库非常完美，因为当我try 将其连接到使用IntelliJIDEA用java编写的项目时，一切都很好.

我已经为此工作了一整天，我try 了在互联网上找到的所有解决方案，但仍然不起作用.

这是我的身材.gradle文件依赖项

plugins {
    id 'com.android.application'
    id 'org.jetbrains.kotlin.android'
}

android {
    compileSdk 31

    defaultConfig {
        applicationId "com.example.myapplication"
        minSdk 21
        targetSdk 31
        versionCode 1
        versionName "1.0"

        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    buildTypes {
        release {
            minifyEnabled false
            proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
        }
    }
    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }
    kotlinOptions {
        jvmTarget = '1.8'
    }
}

dependencies {

    implementation 'org.postgresql:postgresql:42.2.5.jre7'

    implementation 'net.sourceforge.jtds:jtds:1.3.1'
    implementation 'androidx.core:core-ktx:1.7.0'
    implementation 'androidx.appcompat:appcompat:1.4.1'
    implementation 'com.google.android.material:material:1.5.0'
    implementation 'androidx.constraintlayout:constraintlayout:2.1.3'
    testImplementation 'junit:junit:4.13.2'
    androidTestImplementation 'androidx.test.ext:junit:1.1.3'
    androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
}

这是我的密码

package com.example.myapplication

import android.Manifest
import android.content.pm.PackageManager
import android.os.Bundle
import android.os.StrictMode
import android.os.StrictMode.ThreadPolicy
import android.util.Log
import android.view.View
import android.widget.Toast
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import java.sql.Connection
import java.sql.DriverManager
import java.sql.SQLException


var username = "myUsername";
var password = "password";
var  url = "jdbc:postgresql://tyke.db.elephantsql.com:5432/myUsername";
private var connection: Connection? = null

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

}
    fun start(view: View?) {
        ActivityCompat.requestPermissions(
            this,
            arrayOf(Manifest.permission.INTERNET),
            PackageManager.PERMISSION_GRANTED
        )
        val policy = ThreadPolicy.Builder().permitAll().build()
        StrictMode.setThreadPolicy(policy)
        try {
            Class.forName("org.postgresql.Driver")
            connection = DriverManager.getConnection(url, username, password)
            Toast.makeText(this, "Connected", Toast.LENGTH_SHORT).show()
            Log.d("client","connected")
        } catch (e: ClassNotFoundException) {
            e.printStackTrace()
            Toast.makeText(this, "Class fail", Toast.LENGTH_SHORT).show()
            Log.d("client","1 not connected")
        } catch (e: SQLException) {
            e.printStackTrace()
            Log.d("client","2 not connected"+e)
            Toast.makeText(this, "Connected no", Toast.LENGTH_SHORT).show()
        }
    }
}

这是每次都会发生的错误

组织.postgresql.util.PSQLException:连接try 失败.

我希望能得到一些帮助，因为我卡住了，不知道该怎么办.提前感谢您！

*这是错误的完整堆栈跟踪，可能会有所帮助！

2022-05-25 10:28:25.143 20453-20453/com.example.myapplication E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.myapplication, PID: 20453
    java.lang.IllegalStateException: Could not execute method for android:onClick
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:446)
        at android.view.View.performClick(View.java:7125)
        at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1131)
        at android.view.View.performClickInternal(View.java:7102)
        at android.view.View.access$3500(View.java:801)
        at android.view.View$PerformClick.run(View.java:27336)
        at android.os.Handler.handleCallback(Handler.java:883)
        at android.os.Handler.dispatchMessage(Handler.java:100)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: java.lang.reflect.InvocationTargetException
        at java.lang.reflect.Method.invoke(Native Method)
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:441)
        at android.view.View.performClick(View.java:7125) 
        at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1131) 
        at android.view.View.performClickInternal(View.java:7102) 
        at android.view.View.access$3500(View.java:801) 
        at android.view.View$PerformClick.run(View.java:27336) 
        at android.os.Handler.handleCallback(Handler.java:883) 
        at android.os.Handler.dispatchMessage(Handler.java:100) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:7356) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) 
     Caused by: 组织.postgresql.util.PSQLException:连接try 失败.
        at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:292)
        at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49)
        at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:195)
        at org.postgresql.Driver.makeConnection(Driver.java:454)
        at org.postgresql.Driver.connect(Driver.java:256)
        at java.sql.DriverManager.getConnection(DriverManager.java:580)
        at java.sql.DriverManager.getConnection(DriverManager.java:218)
        at com.example.myapplication.MainActivity.start(MainActivity.kt:39)
        at java.lang.reflect.Method.invoke(Native Method) 
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:441) 
        at android.view.View.performClick(View.java:7125) 
        at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1131) 
        at android.view.View.performClickInternal(View.java:7102) 
        at android.view.View.access$3500(View.java:801) 
        at android.view.View$PerformClick.run(View.java:27336) 
        at android.os.Handler.handleCallback(Handler.java:883) 
        at android.os.Handler.dispatchMessage(Handler.java:100) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:7356) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930) 
     Caused by: java.net.SocketException: socket failed: EPERM (Operation not permitted)
        at java.net.Socket.createImpl(Socket.java:492)
        at java.net.Socket.connect(Socket.java:619)
        at org.postgresql.core.PGStream.<init>(PGStream.java:70)
        at org.postgresql.core.v3.ConnectionFactoryImpl.tryConnect(ConnectionFactoryImpl.java:91)
        at org.postgresql.core.v3.ConnectionFactoryImpl.openConnectionImpl(ConnectionFactoryImpl.java:192)
        at org.postgresql.core.ConnectionFactory.openConnection(ConnectionFactory.java:49) 
        at org.postgresql.jdbc.PgConnection.<init>(PgConnection.java:195) 
        at org.postgresql.Driver.makeConnection(Driver.java:454) 
        at org.postgresql.Driver.connect(Driver.java:256) 
        at java.sql.DriverManager.getConnection(DriverManager.java:580) 
        at java.sql.DriverManager.getConnection(DriverManager.java:218) 
        at com.example.myapplication.MainActivity.start(MainActivity.kt:39) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at androidx.appcompat.app.AppCompatViewInflater$DeclaredOnClickListener.onClick(AppCompatViewInflater.java:441) 
        at android.view.View.performClick(View.java:7125) 
        at com.google.android.material.button.MaterialButton.performClick(MaterialButton.java:1131) 
        at android.view.View.performClickInternal(View.java:7102) 
        at android.view.View.access$3500(View.java:801) 
        at android.view.View$PerformClick.run(View.java:27336) 
        at android.os.Handler.handleCallback(Handler.java:883) 
        at android.os.Handler.dispatchMessage(Handler.java:100) 
        at android.os.Looper.loop(Looper.java:214) 
        at android.app.ActivityThread.main(ActivityThread.java:7356) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)