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PHP PDOException：“ SQLSTATE [HY093]：无效的参数编号”（无效的sql类型）

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对于想了解PHPPDOException：“SQLSTATE[HY093]：无效的参数编号”的读者，本文将是一篇不可错过的文章，我们将详细介绍无效的sql类型，并且为您提供关于android–java

对于想了解PHP PDOException：“ SQLSTATE [HY093]：无效的参数编号”的读者，本文将是一篇不可错过的文章，我们将详细介绍无效的sql类型，并且为您提供关于android – java.lang.NumberFormatException：无效的int：“”EXCEPTION、java.io.IOException：无效的密钥库格式、java.io.IOException：无效的常量类型：19 at 5、laravel PDOException: SQLSTATE[HY000] [2002] Network is unreachable in /home/ww的有价值信息。

本文目录一览：

PHP PDOException：“ SQLSTATE [HY093]：无效的参数编号”（无效的sql类型）

PHP PDOException：“ SQLSTATE [HY093]：无效的参数编号”（无效的sql类型）

尝试运行以下功能时，出现错误“ SQLSTATE [HY093]：无效的参数号”：

function add_persist($db, $user_id) {    $hash = md5("per11".$user_id."sist11".time());    $future = time()+(60*60*24*14);    $sql = "INSERT INTO persist (user_id, hash, expire) VALUES (:user_id, :hash, :expire) ON DUPLICATE KEY UPDATE hash=:hash";    $stm = $db->prepare($sql);    $stm->execute(array(":user_id" => $user_id, ":hash" => $hash, ":expire" => $future));    return $hash;}

我觉得这很简单，我只是没有抓住。有任何想法吗？

答案1

小编典典

尝试：

$sql = "INSERT INTO persist (user_id, hash, expire) VALUES (:user_id, :hash, :expire) ON DUPLICATE KEY UPDATE hash=:hash2";

和

$stm->execute(array(":user_id" => $user_id, ":hash" => $hash, ":expire" => $future, ":hash2" => $hash));

文档摘录（http://php.net/manual/zh/pdo.prepare.php）：

调用PDOStatement ::
execute（）时，对于要传递给语句的每个值，必须包含一个唯一的参数标记。您不能在准备好的语句中两次使用相同名称的命名参数标记。您不能在例如SQL语句的IN（）子句中将多个值绑定到单个命名参数。

android – java.lang.NumberFormatException：无效的int：“”EXCEPTION

android – java.lang.NumberFormatException：无效的int：“”EXCEPTION

如果用户将edittext留空,则会发生错误 java.lang.NumberFormatException：Invalid int：“”.
错误就行了 
if (a=="" && b=="")

并且也在线

int result = Integer.parseInt(a) + Integer.parseInt(b);
 t1.setText(Integer.toString(result));

Calci.java

package com.example.calculator;

import android.app.Activity;
import android.app.AlertDialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.View;
import android.view.inputmethod.InputMethodManager;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;

public class Calci extends Activity {
    TextView t1;
    EditText e1,e2;
    Button add,sub,mul,div;
    Context c=this;

    String b,a;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_calci);
        e1 = (EditText) findViewById(R.id.EditText01);
        e2 = (EditText) findViewById(R.id.EditText02);
        add = (Button) findViewById(R.id.add);
        sub = (Button) findViewById(R.id.sub);
        mul = (Button) findViewById(R.id.mul);
        div = (Button) findViewById(R.id.div);
        t1 = (TextView) findViewById(R.id.textView1);
        a = e1.getText().toString();
        b = e2.getText().toString();
add.setonClickListener(new View.OnClickListener() {

    @Override
    public void onClick(View arg0) {
        if (a=="" && b==""){
                AlertDialog.Builder a1 = new AlertDialog.Builder(c);


                // Setting Dialog Title
                a1.setTitle("Alert Dialog");

                // Setting Dialog Message
                a1.setMessage("PLEASE ENTER SOMETHING");

                a1.setPositiveButton("yes",new DialogInterface.OnClickListener() {
                            public void onClick(DialogInterface dialog,int button1) {
                                // if this button is clicked,close
                                // current activity
                                dialog.cancel();
                            }

                        });

                // Showing Alert Message
                AlertDialog alertDialog = a1.create();
                a1.show();

            }

        else{
            int result = Integer.parseInt(a) + Integer.parseInt(b);
            t1.setText(Integer.toString(result));
            InputMethodManager imm = (InputMethodManager)getSystemService(
                      Context.INPUT_METHOD_SERVICE);
                imm.hideSoftInputFromWindow(add.getwindowToken(),0);
        }

    }

});
    }
}

logcat的：

03-19 15:42:21.165: E/Trace(25381): error opening trace file: Permission denied (13)
03-19 15:42:21.165: D/ActivityThread(25381): setTargetHeaputilization:0.25
03-19 15:42:21.165: D/ActivityThread(25381): setTargetHeapIdealFree:8388608
03-19 15:42:21.165: D/ActivityThread(25381): setTargetHeapConcurrentStart:2097152
03-19 15:42:21.385: D/libEGL(25381): loaded /system/lib/egl/libEGL_adreno200.so
03-19 15:42:21.465: D/libEGL(25381): loaded /system/lib/egl/libGLESv1_CM_adreno200.so
03-19 15:42:21.475: D/libEGL(25381): loaded /system/lib/egl/libGLESv2_adreno200.so
03-19 15:42:21.475: I/Adreno200-EGL(25381): <qeglDrvAPI_eglInitialize:299>: EGL 1.4 QUALCOMM build:  (Merge)
03-19 15:42:21.475: I/Adreno200-EGL(25381): Build Date: 07/09/13 Tue
03-19 15:42:21.475: I/Adreno200-EGL(25381): Local Branch: AU_41
03-19 15:42:21.475: I/Adreno200-EGL(25381): Remote Branch: 
03-19 15:42:21.475: I/Adreno200-EGL(25381): Local Patches: 
03-19 15:42:21.475: I/Adreno200-EGL(25381): Reconstruct Branch: 
03-19 15:42:21.675: D/Openglrenderer(25381): Enabling debug mode 0
03-19 15:42:24.325: D/AndroidRuntime(25381): Shutting down VM
03-19 15:42:24.325: W/dalvikvm(25381): threadid=1: thread exiting with uncaught exception (group=0x41972378)
03-19 15:42:24.395: E/AndroidRuntime(25381): FATAL EXCEPTION: main
03-19 15:42:24.395: E/AndroidRuntime(25381): java.lang.NumberFormatException: Invalid int: ""
03-19 15:42:24.395: E/AndroidRuntime(25381):    at java.lang.Integer.invalidInt(Integer.java:138)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at java.lang.Integer.parseInt(Integer.java:359)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at java.lang.Integer.parseInt(Integer.java:332)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at com.example.calculator.Calci$1.onClick(Calci.java:67)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at android.view.View.performClick(View.java:4147)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at android.view.View$PerformClick.run(View.java:17161)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at android.os.Handler.handleCallback(Handler.java:615)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at android.os.Handler.dispatchMessage(Handler.java:92)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at android.os.Looper.loop(Looper.java:213)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at android.app.ActivityThread.main(ActivityThread.java:4787)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at java.lang.reflect.Method.invokeNative(Native Method)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at java.lang.reflect.Method.invoke(Method.java:511)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:789)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:556)
03-19 15:42:24.395: E/AndroidRuntime(25381):    at dalvik.system.NativeStart.main(Native Method)
03-19 15:42:25.685: I/Process(25381): Sending signal. PID: 25381 SIG: 9

任何人都知道如何解决这些堆栈跟踪错误.

解决方法

使用以下. 
a = e1.getText().toString().trim();    
 b = e2.getText().toString().trim(); 
 if (a.equals("") && b.equals("") ){

 }

java.io.IOException：无效的密钥库格式

java.io.IOException：无效的密钥库格式

有谁知道如何解决这个问题？
我尝试了许多事情,但没有一个工作.

当我点击更多的细节我得到这个：

at sun.security.provider.JavaKeyStore.engineLoad(UnkNown Source)
atsun.security.provider.JavaKeyStore$JKS.engineLoad(UnkNown Source)
at java.security.KeyStore.load(UnkNown Source)
at com.sun.deploy.security.RootCertStore$1.run(UnkNown Source)
at java.security.AccessController.doPrivileged(Native Method)
at com.sun.deploy.security.RootCertStore.loadCertStore(UnkNown Source)
at com.sun.deploy.security.RootCertStore.load(UnkNown Source)
at com.sun.deploy.security.RootCertStore.load(UnkNown Source)
at com.sun.deploy.security.ImmutableCertStore.load(UnkNown Source)
at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(UnkNown Source)
at com.sun.deploy.security.TrustDecider.isAllPermissionGranted(UnkNown Source)
at sun.plugin.security.PluginClassLoader.getPermissions(UnkNown Source)
at java.security.SecureClassLoader.getProtectionDomain(UnkNown Source)
at java.security.SecureClassLoader.defineClass(UnkNown Source)
at java.net.urlclassloader.defineClass(UnkNown Source)
at java.net.urlclassloader.access$000(UnkNown Source)
at java.net.urlclassloader$1.run(UnkNown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.urlclassloader.findClass(UnkNown Source)
at sun.applet.AppletClassLoader.findClass(UnkNown Source)
at java.lang.classLoader.loadClass(UnkNown Source)
at sun.applet.AppletClassLoader.loadClass(UnkNown Source)
at java.lang.classLoader.loadClass(UnkNown Source)
at sun.applet.AppletClassLoader.loadCode(UnkNown Source)
at sun.applet.AppletPanel.createApplet(UnkNown Source)
at sun.plugin.AppletViewer.createApplet(UnkNown Source)
at sun.applet.AppletPanel.runLoader(UnkNown Source)
at sun.applet.AppletPanel.run(UnkNown Source)
at java.lang.Thread.run(UnkNown Source)

解决方法

您可能会在复制/传输过程中损坏该文件.

你使用maven吗
如果您使用“filter = true”复制密钥库文件,则可能会损坏该文件.

请检查文件大小.

java.io.IOException：无效的常量类型：19 at 5

java.io.IOException：无效的常量类型：19 at 5

我有一个项目。它使用spring boot 2，java9和Maven。可以使用构建成功mvn clean package。

为了运行spring boot应用程序，我使用了命令

java -jar java-cloud-rest-api/target/java-cloud-rest-api-0.0.1-SNAPSHOT.jar

但失败并出现错误

org.springframework.beans.factory.BeanCreationException: Error creating bean with name ''entityManagerFactory'' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1716) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:499) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1083) ~[spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:122) ~[spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1245) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1233) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at com.lapots.breed.platform.cloud.boot.app.JavaCloudSampleApplication.main(JavaCloudSampleApplication.java:10) [classes!/:0.0.1-SNAPSHOT]        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]        at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]Caused by: java.lang.NoClassDefFoundError: javax/xml/bind/JAXBException        at org.hibernate.boot.spi.XmlMappingBinderAccess.<init>(XmlMappingBinderAccess.java:43) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.boot.MetadataSources.<init>(MetadataSources.java:87) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:208) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:163) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:51) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:358) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:384) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1776) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1712) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        ... 24 common frames omittedCaused by: java.lang.ClassNotFoundException: javax.xml.bind.JAXBException        at java.base/java.net.URLClassLoader.findClass(Unknown Source) ~[na:na]        at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ~[na:na]        at org.springframework.boot.loader.LaunchedURLClassLoader.loadClass(LaunchedURLClassLoader.java:93) ~[java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at java.base/java.lang.ClassLoader.loadClass(Unknown Source) ~[na:na]        ... 34 common frames omitted

我在启动命令中添加了其他参数

java --add-modules java.xml.bind -jar java-cloud-rest-api/target/java-cloud-rest-api-0.0.1-SNAPSHOT.jar

但是当我运行它时，出现此错误

java.lang.ClassCastException: org.springframework.boot.context.event.ApplicationFailedEvent cannot be cast to org.springframework.boot.web.context.WebServerInitializedEvent        at org.springframework.context.event.SimpleApplicationEventMulticaster.invokeListener(SimpleApplicationEventMulticaster.java:159) [spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:139) [spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.event.SimpleApplicationEventMulticaster.multicastEvent(SimpleApplicationEventMulticaster.java:127) [spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.boot.context.event.EventPublishingRunListener.finished(EventPublishingRunListener.java:114) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplicationRunListeners.callFinishedListener(SpringApplicationRunListeners.java:79) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplicationRunListeners.finished(SpringApplicationRunListeners.java:72) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:803) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1245) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1233) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at com.lapots.breed.platform.cloud.boot.app.JavaCloudSampleApplication.main(JavaCloudSampleApplication.java:10) [classes!/:0.0.1-SNAPSHOT]        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]        at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]2017-09-09 18:03:42.242  INFO 9200 --- [           main] utoConfigurationReportLoggingInitializer :Error starting ApplicationContext. To display the auto-configuration report re-run your application with ''debug'' enabled.2017-09-09 18:03:42.242 ERROR 9200 --- [           main] o.s.boot.SpringApplication               : Application startup failedorg.springframework.beans.factory.BeanCreationException: Error creating bean with name ''entityManagerFactory'' defined in class path resource [org/springframework/boot/autoconfigure/orm/jpa/HibernateJpaAutoConfiguration.class]: Invocation of init method failed; nested exception is org.hibernate.boot.archive.spi.ArchiveException: Could not build ClassFile        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1716) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:582) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:499) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractBeanFactory.lambda$doGetBean$0(AbstractBeanFactory.java:312) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:234) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:310) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:200) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1083) ~[spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:858) ~[spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:549) ~[spring-context-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:122) ~[spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:750) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:386) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1245) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at org.springframework.boot.SpringApplication.run(SpringApplication.java:1233) [spring-boot-2.0.0.M3.jar!/:2.0.0.M3]        at com.lapots.breed.platform.cloud.boot.app.JavaCloudSampleApplication.main(JavaCloudSampleApplication.java:10) [classes!/:0.0.1-SNAPSHOT]        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]        at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) ~[na:na]        at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) ~[na:na]        at java.base/java.lang.reflect.Method.invoke(Unknown Source) ~[na:na]        at org.springframework.boot.loader.MainMethodRunner.run(MainMethodRunner.java:48) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.Launcher.launch(Launcher.java:87) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.Launcher.launch(Launcher.java:50) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]        at org.springframework.boot.loader.JarLauncher.main(JarLauncher.java:51) [java-cloud-rest-api-0.0.1-SNAPSHOT.jar:0.0.1-SNAPSHOT]Caused by: org.hibernate.boot.archive.spi.ArchiveException: Could not build ClassFile        at org.hibernate.boot.archive.scan.spi.ClassFileArchiveEntryHandler.toClassFile(ClassFileArchiveEntryHandler.java:64) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.boot.archive.scan.spi.ClassFileArchiveEntryHandler.handleEntry(ClassFileArchiveEntryHandler.java:47) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.boot.archive.internal.JarFileBasedArchiveDescriptor.visitArchive(JarFileBasedArchiveDescriptor.java:146) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.boot.archive.scan.spi.AbstractScannerImpl.scan(AbstractScannerImpl.java:47) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.boot.model.process.internal.ScanningCoordinator.coordinateScan(ScanningCoordinator.java:75) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.boot.model.process.spi.MetadataBuildingProcess.prepare(MetadataBuildingProcess.java:98) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:228) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.hibernate.jpa.boot.internal.EntityManagerFactoryBuilderImpl.<init>(EntityManagerFactoryBuilderImpl.java:163) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        at org.springframework.orm.jpa.vendor.SpringHibernateJpaPersistenceProvider.createContainerEntityManagerFactory(SpringHibernateJpaPersistenceProvider.java:51) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:358) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.buildNativeEntityManagerFactory(AbstractEntityManagerFactoryBean.java:384) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:373) ~[spring-orm-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1776) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1712) ~[spring-beans-5.0.0.RC3.jar!/:5.0.0.RC3]        ... 24 common frames omittedCaused by: java.io.IOException: invalid constant type: 19 at 5        at javassist.bytecode.ConstPool.readOne(ConstPool.java:1244) ~[javassist-3.21.0-GA.jar!/:na]        at javassist.bytecode.ConstPool.read(ConstPool.java:1175) ~[javassist-3.21.0-GA.jar!/:na]        at javassist.bytecode.ConstPool.<init>(ConstPool.java:185) ~[javassist-3.21.0-GA.jar!/:na]        at javassist.bytecode.ClassFile.read(ClassFile.java:829) ~[javassist-3.21.0-GA.jar!/:na]        at javassist.bytecode.ClassFile.<init>(ClassFile.java:154) ~[javassist-3.21.0-GA.jar!/:na]        at org.hibernate.boot.archive.scan.spi.ClassFileArchiveEntryHandler.toClassFile(ClassFileArchiveEntryHandler.java:61) ~[hibernate-core-5.2.10.Final.jar!/:5.2.10.Final]        ... 37 common frames omitted

问题是什么？

答案1

小编典典

虽然这不能解决该问题，但是如JDK-8161256中关于常量池标签所述：

Java 9将代码19和20用于模块系统。

当前javassist创建的方法是使用肯定缺少最新Java版本的方法的方法（在Java8之前的表中）ClassFile查找。您的依赖层次结构：ConstantPoolreadOneModule``javassist

  • org.springframework.boot：spring-boot-starter-
    actuator：jar：2.0.0.M3：compile

    • org.springframework.boot：spring-boot-starter-data-
      jpa：jar：2.0.0.M3：compile

    • org.hibernate：hibernate-core：jar：5.2.10.Final：compile

      • org.javassist：javassist：jar：3.21.0-GA：compile

看看事物的javassist方面：

  • 似乎在javassist / issues＃147上注册了类似的错误。

  • 它们中的rel_3_22_0_cr2（最新发行版）显示 与Java 9-ea + 164兼容。 此版本的javassist也会发生相同的问题。

  • 因此，您可能可以等待javassist提出解决方案。

laravel PDOException: SQLSTATE[HY000] [2002] Network is unreachable in /home/ww

laravel PDOException: SQLSTATE[HY000] [2002] Network is unreachable in /home/ww


访问数据库之前一直正常访问，执行一次 sql 异常脚本后，报错：

SQLSTATE[HY000] [2002] Network is unreachable 

无法访问SQLSTATE[HY000][2002]网络

找各种原因都试过，不可以，最后偶然重启机器好了。奇怪。我的是在 Mac 上搭建的 vagrant 虚拟机。估测是跑异常 sql 脚本把机器跑挂了，有明白的小伙伴，欢迎留言。

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