main.java:3: 错误: 类Point是公共的, 应在名为 Point.java 的文件中声明,这是什么错误

public static class Point {

public double x;
public double y;
//定义一个点方法(函数),其表示为自然语言中的平面坐标点
public Point(double x, double y) {
    //定义点的横轴坐标值
    this.x=x;
    //定义点的纵轴坐标值
    this.y=y;
}
//根据已知点计算两点间的距离
public double getDistance(Point p) {
    //定义一个双精度的参数x放两点横轴坐标差值的绝对值
    double x=Math.abs(this.x-p.x);
    //定义一个双精度的参数y放两点纵轴坐标差值的绝对值
    double y=Math.abs(this.y-p.y);
    //根据正弦定理计算出一个双精度的两点坐标距离的值,并将其作为该方法(计算两点间坐标距离)的返回值
    return Math.sqrt(x*x+y*y);
}
//根据已知点计算方位角
public double getAngle(Point p) {
    //定义一个双精度的参数x放两点横轴坐标差值的绝对值
    double x=Math.abs(this.x-p.x);
    //定义一个双精度的参数y放两点纵轴坐标差值的绝对值
    double y=Math.abs(this.y-p.y);
    //定义一个双精度的参数z放y/x的绝对值
    double z=Math.abs(y/x);
    //计算出两点的坐标方位角,并将其作为该方法(计算已知两点构成的边的坐标方位角)的返回值
    return (1/Math.atan(z))/Math.PI*180;
}

}

public interface Check {
public static final int Rou=206265;
double check(Point P1, Point P2);
}

//前方交会测量计算
public static class Front_Intersection implements Check {
public Point pointA = null;
public Point pointB = null;
public double angleA = 0;
public double angleB = 0;

public Point QFJH() {
    // 定义待定淀P的横轴坐标和纵轴坐标
    double x_P = 0;
    double y_P = 0;
    int sign = 1;

    /*
     * 求出P点的坐标算法,根据余切定理式子的程序化,只需将对应点按逆时针顺序放入即可求出待定点,具体算法如下
     */ 
    double sAcB = Math.sin(angleA) * Math.cos(angleB);
    double cAsB = Math.cos(angleA) * Math.sin(angleB);
    double sAsB = Math.sin(angleA) * Math.sin(angleB);

    x_P = (pointA.x * sAcB + pointB.x * cAsB + sign * (pointA.y - pointB.y) * sAsB) / (sAcB + cAsB);
    y_P = (pointA.y * sAcB + pointB.y * cAsB + sign * (pointB.x - pointA.x) * sAsB) / (sAcB + cAsB);

    return new Point(x_P, y_P);// 返回P点的坐标值
}

/*
 * 前方交会检核,返回值为求得的两点的横向位移之差的绝对值。
 * */
@Override
public double check(Point P1, Point P2) {
    // TODO Auto-generated method stub
    return P1.getDistance(P2);
}

}

//侧方交会测量计算
public static class Side_Intersection implements Check {
public Point pointA = null;
public Point pointB = null;
public Point pointC = null;
public Point pointP = null;
public double angleA = 0;
public double angleP = 0;
public double angleB = 180 - ( angleA + angleP );

public Point CFJH(){
    //定义待定淀P的横轴坐标和纵轴坐标
    double x_P =0;
    double y_P =0;
    int sign = 1;
    //求出P点的坐标算法
    double sAcB = Math.sin(angleA)*Math.cos(angleB);
    double cAsB = Math.cos(angleA)*Math.sin(angleB);
    double sAsB = Math.sin(angleA)*Math.sin(angleB);

    x_P = (pointA.x*sAcB + pointB.x*cAsB + sign*(pointA.y - pointB.y)*sAsB) /(sAcB + cAsB);
    y_P = (pointA.y*sAcB + pointB.y*cAsB + sign*(pointB.x - pointA.x)*sAsB) /(sAcB + cAsB);


    return new Point(x_P, y_P);//返回P点的坐标值

}

/*
 * 侧方交会检测方法,返回的是AP的方位角,由于基本的集合知识可以知道AP方位角正弦值的倒数即为观测∠APC的弧度
 * */
@Override
public double check(Point P1, Point P2) {
    // TODO Auto-generated method stub
    return P1.getAngle(P2);
}

}
//主函数
public static class Main {

public static void main(String[] args) {
    // TODO Auto-generated method stub
    /*
     * 前方交会测量实现以及对测量值的检核
     * */
    Point pC1 = new Point(0, 200);
    Point pB1 = new Point(0, 100);
    Point pA1 = new Point(0,0);
    double angleC1 = 44.992/180*Math.PI;
    double angleB11 = 89.999/180*Math.PI;
    double angleB12 = 90.001/180*Math.PI;
    double angleA1 = 45.0/180*Math.PI;

    //建立前方测量的第一次测量对象test
    Front_Intersection test = new Front_Intersection();
    //依次按逆时针放入对应的点和参数值
    test.pointA = pC1;
    test.pointB = pB1;
    test.angleA = angleC1;
    test.angleB = angleB11;
    Point ret = test.QFJH();

    //建立前方测量的第二次测量对象test1
    Front_Intersection test1 = new Front_Intersection();
    //依次按逆时针放入对应的点和参数值
    test1.pointA = pB1;
    test1.pointB = pA1;
    test1.angleA = angleB12;
    test1.angleB = angleA1;
    Point ret0 = test1.QFJH();

    //第一次测量出来的点P的坐标
    Point pP11 = new Point (ret.x , ret.y);
    //第二次测量出来的点P的坐标
    Point pP12 = new Point (ret0.x , ret0.y);
    /*
     * 
     * 以下为输出语句
     * 
     */
    System.out.println("根据点C、B,以及∠C和∠CBP求得点P的第一次测量值:");
    System.out.println("第一次测量出的点P :"+"(" + ret.x + ", " + ret.y +")");
    System.out.println("根据点B、A,以及∠PBA和∠BAP求得点P的第二次测量值:");
    System.out.println("第二次测量出的点P :"+"(" + ret0.x + ", " + ret0.y +")");

    //实现检测方法
    System.out.println("下面进行测量检测:");
    double m = test.check(ret, ret0);
    if(m <= 0.2) {
        System.out.println("检测合格");
        System.out.println("为了更精确P点,取两次测量的平均值:");
        Point AVGP1 = new Point ((ret.x + ret0.x)/2 , (ret.y + ret0.y)/2);
        System.out.println("点P的综合测量值为 :" + "(" + AVGP1.x + ", " + AVGP1.y +")");
        System.out.println("点P到点A的距离为:" + AVGP1.getDistance(pA1));
        System.out.println("点P到点B的距离为:" + AVGP1.getDistance(pB1));
        System.out.println("点P到点C的距离为:" + AVGP1.getDistance(pC1));
        System.out.println("AP的方位角为:" + AVGP1.getAngle(pA1));
        System.out.println("BP的方位角为:" + AVGP1.getAngle(pB1));
        System.out.println("CP的方位角为:" + AVGP1.getAngle(pC1));
    }
    else
        System.out.println("检测不合格 , 需要重新检测!!!");


    /*
     * 
     *  以下为侧方交会的实现以及对测量值的检核
     *
     */

    //侧方交会的参数值
    Point pC2 = new Point(100, 0);
    Point pB2 = new Point(0, 100);
    Point pA2 = new Point(0, 0);
    double angleP2 = 45.002/180*Math.PI;
    double anglePO = 45.005/180*Math.PI;
    double angleA2 = 44.995/180*Math.PI;
    double angleB2 = (90.0 - angleP2 + angleA2)/180*Math.PI;

    //侧方交会的测量对象Test
    Side_Intersection Test= new Side_Intersection();
    //按逆时针顺序依次放入参数
    Test.pointA = pB2;
    Test.pointB = pA2;
    Test.angleA = angleB2;
    Test.angleP = angleP2;
    Point ret1 = Test.CFJH();

    //求得的P点值
    Point pP2 = new Point (ret1.x , ret1.y);

    //定义一个双精度变量n放置测量出来的P点到A的方位角正切值得倒数,即∠APC的测量值
    double n = 1/Math.atan(Test.check(ret1, Test.pointA));
    //定义一个双精度变量l放置点∠APC和观测值和测量值之差的绝对值
    double l = Math.abs(anglePO - n);

    //进行检核判断
    if(l <= 40){
        System.out.println("检测合格");
        System.out.println("点P的综合测量值为 :" + "(" + ret1.x + ", " + ret1.y +")");
        System.out.println("点P到点A的距离为:" + pP2.getDistance(pA2));
        System.out.println("点P到点B的距离为:" + pP2.getDistance(pB2));
        System.out.println("点P到点C的距离为:" + pP2.getDistance(pC2));
        System.out.println("AP的方位角为:" + pP2.getAngle(pA2));
        System.out.println("BP的方位角为:" + pP2.getAngle(pB2));
        System.out.println("CP的方位角为:" + pP2.getAngle(pC2));
    }
    else
        System.out.println("检测不合格 , 需要重新检测!!!");


}

}

1个回答

你的源代码文件名,修改为Point.java即可。
或者public class Point去掉public

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org.springframework.context.support.PostProcessorRegistrationDelegate.invokeBeanFactoryPostProcessors(PostProcessorRegistrationDelegate.java:93) at org.springframework.context.support.AbstractApplicationContext.invokeBeanFactoryPostProcessors(AbstractApplicationContext.java:694) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:532) at org.springframework.boot.web.servlet.context.ServletWebServerApplicationContext.refresh(ServletWebServerApplicationContext.java:140) at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:759) at org.springframework.boot.SpringApplication.refreshContext(SpringApplication.java:395) at org.springframework.boot.SpringApplication.run(SpringApplication.java:327) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) at com.xuecheng.manage_cms.ManageCmsApplication.main(ManageCmsApplication.java:15) Caused by: java.lang.IllegalStateException: Failed to introspect Class [org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541) at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:599) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:724) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:665) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:633) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1489) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1012) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanTypeForNonAliasDefinition(BeanTypeRegistry.java:164) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.addBeanType(BeanTypeRegistry.java:153) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.updateTypesIfNecessary(BeanTypeRegistry.java:203) at org.springframework.boot.autoconfigure.condition.BeanTypeRegistry.getNamesForType(BeanTypeRegistry.java:115) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.collectBeanNamesForType(OnBeanCondition.java:265) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getBeanNamesForType(OnBeanCondition.java:254) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchingBeans(OnBeanCondition.java:196) at org.springframework.boot.autoconfigure.condition.OnBeanCondition.getMatchOutcome(OnBeanCondition.java:116) at org.springframework.boot.autoconfigure.condition.SpringBootCondition.matches(SpringBootCondition.java:47) ... 17 common frames omitted Caused by: java.lang.NoClassDefFoundError: org/springframework/data/mongodb/core/convert/MongoCustomConversions at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ... 34 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.data.mongodb.core.convert.MongoCustomConversions at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 38 common frames omitted 2019-09-27 20:40:02.287 [main] INFO o.s.b.w.s.c.AnnotationConfigServletWebServerApplicationContext - Closing org.springframework.boot.web.servlet.context.AnnotationConfigServletWebServerApplicationContext@59662a0b: startup date [Fri Sep 27 20:39:59 CST 2019]; root of context hierarchy 2019-09-27 20:40:02.293 [main] WARN o.s.boot.SpringApplication - Unable to close ApplicationContext java.lang.IllegalStateException: Failed to introspect Class [org.springframework.boot.autoconfigure.data.mongo.MongoDataAutoConfiguration] from ClassLoader [sun.misc.Launcher$AppClassLoader@18b4aac2] at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:659) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:556) at org.springframework.util.ReflectionUtils.doWithMethods(ReflectionUtils.java:541) at org.springframework.util.ReflectionUtils.getUniqueDeclaredMethods(ReflectionUtils.java:599) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.getTypeForFactoryMethod(AbstractAutowireCapableBeanFactory.java:724) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.determineTargetType(AbstractAutowireCapableBeanFactory.java:665) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.predictBeanType(AbstractAutowireCapableBeanFactory.java:633) at org.springframework.beans.factory.support.AbstractBeanFactory.isFactoryBean(AbstractBeanFactory.java:1489) at org.springframework.beans.factory.support.DefaultListableBeanFactory.doGetBeanNamesForType(DefaultListableBeanFactory.java:420) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeanNamesForType(DefaultListableBeanFactory.java:390) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:511) at org.springframework.beans.factory.support.DefaultListableBeanFactory.getBeansOfType(DefaultListableBeanFactory.java:503) at org.springframework.context.support.AbstractApplicationContext.getBeansOfType(AbstractApplicationContext.java:1198) at org.springframework.boot.SpringApplication.getExitCodeFromMappedException(SpringApplication.java:889) at org.springframework.boot.SpringApplication.getExitCodeFromException(SpringApplication.java:875) at org.springframework.boot.SpringApplication.handleExitCode(SpringApplication.java:861) at org.springframework.boot.SpringApplication.handleRunFailure(SpringApplication.java:810) at org.springframework.boot.SpringApplication.run(SpringApplication.java:338) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1255) at org.springframework.boot.SpringApplication.run(SpringApplication.java:1243) at com.xuecheng.manage_cms.ManageCmsApplication.main(ManageCmsApplication.java:15) Caused by: java.lang.NoClassDefFoundError: org/springframework/data/mongodb/core/convert/MongoCustomConversions at java.lang.Class.getDeclaredMethods0(Native Method) at java.lang.Class.privateGetDeclaredMethods(Class.java:2701) at java.lang.Class.getDeclaredMethods(Class.java:1975) at org.springframework.util.ReflectionUtils.getDeclaredMethods(ReflectionUtils.java:641) ... 20 common frames omitted Caused by: java.lang.ClassNotFoundException: org.springframework.data.mongodb.core.convert.MongoCustomConversions at java.net.URLClassLoader.findClass(URLClassLoader.java:382) at java.lang.ClassLoader.loadClass(ClassLoader.java:424) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:349) at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ... 24 common frames omitted Process finished with exit code 1 ``` **application.yml配置文件** **server: port: 31001 spring: application: name: service-manager-test data: mongodb: uri: mongodb://localhost:27017 database: test authentication-database: admin username: root password: root**

来大神看看java.io.FileNotFoundException:

java.io.FileNotFoundException: F:\Users\file\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\*****\static\files\temp\1509615179526.docx (系统找不到指定的路径。) at java.io.FileOutputStream.open(Native Method) at java.io.FileOutputStream.<init>(FileOutputStream.java:221) at java.io.FileOutputStream.<init>(FileOutputStream.java:171) at com.word.***saveAs(MSWordTool.java:257) at com.org.controller.**.####Controller.get@@@season_report(@@@Controller.java:313) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:221) at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:137) at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:111) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:806) at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:729) at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:959) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:872) at javax.servlet.http.HttpServlet.service(HttpServlet.java:650) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) at javax.servlet.http.HttpServlet.service(HttpServlet.java:731) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at com.org.util.AccessFilter.doFilter(AccessFilter.java:73) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:85) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.springframework.orm.hibernate4.support.OpenSessionInViewFilter.doFilterInternal(OpenSessionInViewFilter.java:151) at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:505) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:956) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:423) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1079) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:625) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2522) at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2511) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) 文件创建失败!

java.lang.NoSuchFieldError: INSTANCE 谁帮我看下谢谢

org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [com/zhin/ycb/spring/application-spring.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchFieldError: INSTANCE at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1482) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642) at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.NoSuchFieldError: INSTANCE at org.hibernate.type.BasicTypeRegistry.<init>(BasicTypeRegistry.java:94) at org.hibernate.type.TypeResolver.<init>(TypeResolver.java:59) at org.hibernate.cfg.Configuration.<init>(Configuration.java:250) at org.hibernate.cfg.Configuration.<init>(Configuration.java:302) at org.hibernate.cfg.AnnotationConfiguration.<init>(AnnotationConfiguration.java:108) at org.hibernate.ejb.Ejb3Configuration.<clinit>(Ejb3Configuration.java:107) at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:130) at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:288) at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479) ... 28 more 2015-4-3 13:34:27 org.apache.catalina.core.StandardContext listenerStart 严重: Exception sending context initialized event to listener instance of class org.springframework.web.context.ContextLoaderListener org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'entityManagerFactory' defined in class path resource [com/zhin/ycb/spring/application-spring.xml]: Invocation of init method failed; nested exception is java.lang.NoSuchFieldError: INSTANCE at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1482) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.doCreateBean(AbstractAutowireCapableBeanFactory.java:521) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.createBean(AbstractAutowireCapableBeanFactory.java:458) at org.springframework.beans.factory.support.AbstractBeanFactory$1.getObject(AbstractBeanFactory.java:295) at org.springframework.beans.factory.support.DefaultSingletonBeanRegistry.getSingleton(DefaultSingletonBeanRegistry.java:223) at org.springframework.beans.factory.support.AbstractBeanFactory.doGetBean(AbstractBeanFactory.java:292) at org.springframework.beans.factory.support.AbstractBeanFactory.getBean(AbstractBeanFactory.java:194) at org.springframework.context.support.AbstractApplicationContext.getBean(AbstractApplicationContext.java:1117) at org.springframework.context.support.AbstractApplicationContext.finishBeanFactoryInitialization(AbstractApplicationContext.java:922) at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:479) at org.springframework.web.context.ContextLoader.configureAndRefreshWebApplicationContext(ContextLoader.java:389) at org.springframework.web.context.ContextLoader.initWebApplicationContext(ContextLoader.java:294) at org.springframework.web.context.ContextLoaderListener.contextInitialized(ContextLoaderListener.java:112) at org.apache.catalina.core.StandardContext.listenerStart(StandardContext.java:4206) at org.apache.catalina.core.StandardContext.start(StandardContext.java:4705) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:799) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:779) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:601) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1079) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1002) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:506) at org.apache.catalina.startup.HostConfig.check(HostConfig.java:1385) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:306) at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:142) at org.apache.catalina.core.ContainerBase.backgroundProcess(ContainerBase.java:1389) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1653) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.processChildren(ContainerBase.java:1662) at org.apache.catalina.core.ContainerBase$ContainerBackgroundProcessor.run(ContainerBase.java:1642) at java.lang.Thread.run(Thread.java:662) Caused by: java.lang.NoSuchFieldError: INSTANCE at org.hibernate.type.BasicTypeRegistry.<init>(BasicTypeRegistry.java:94) at org.hibernate.type.TypeResolver.<init>(TypeResolver.java:59) at org.hibernate.cfg.Configuration.<init>(Configuration.java:250) at org.hibernate.cfg.Configuration.<init>(Configuration.java:302) at org.hibernate.cfg.AnnotationConfiguration.<init>(AnnotationConfiguration.java:108) at org.hibernate.ejb.Ejb3Configuration.<clinit>(Ejb3Configuration.java:107) at org.hibernate.ejb.HibernatePersistence.createContainerEntityManagerFactory(HibernatePersistence.java:130) at org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean.createNativeEntityManagerFactory(LocalContainerEntityManagerFactoryBean.java:288) at org.springframework.orm.jpa.AbstractEntityManagerFactoryBean.afterPropertiesSet(AbstractEntityManagerFactoryBean.java:310) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.invokeInitMethods(AbstractAutowireCapableBeanFactory.java:1541) at org.springframework.beans.factory.support.AbstractAutowireCapableBeanFactory.initializeBean(AbstractAutowireCapableBeanFactory.java:1479) ... 28 more

关于java.lang.NoClassDefFoundError:

出错提示是这样的: java.lang.NoClassDefFoundError: org/saxpath/SAXPathException at java.lang.ClassLoader.defineClass1(Native Method) at java.lang.ClassLoader.defineClass(ClassLoader.java:621) at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:124) at java.net.URLClassLoader.defineClass(URLClassLoader.java:260) at java.net.URLClassLoader.access$000(URLClassLoader.java:56) at java.net.URLClassLoader$1.run(URLClassLoader.java:195) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) at org.dom4j.DocumentFactory.createXPath(DocumentFactory.java:230) at org.dom4j.tree.AbstractNode.createXPath(AbstractNode.java:207) at org.dom4j.tree.AbstractNode.selectSingleNode(AbstractNode.java:183) at com.dao.impl.UserDaoImpl.find(UserDaoImpl.java:44) at com.junit.test.UserDaoTest.testFind(UserDaoTest.java:31) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25) at java.lang.reflect.Method.invoke(Method.java:597) at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44) at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15) at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41) at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20) at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71) at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49) at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193) at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52) at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191) at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42) at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184) at org.junit.runners.ParentRunner.run(ParentRunner.java:236) at org.eclipse.jdt.internal.junit4.runner.JUnit4TestReference.run(JUnit4TestReference.java:50) at org.eclipse.jdt.internal.junit.runner.TestExecution.run(TestExecution.java:38) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:467) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.runTests(RemoteTestRunner.java:683) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.run(RemoteTestRunner.java:390) at org.eclipse.jdt.internal.junit.runner.RemoteTestRunner.main(RemoteTestRunner.java:197) Caused by: java.lang.ClassNotFoundException: org.saxpath.SAXPathException at java.net.URLClassLoader$1.run(URLClassLoader.java:200) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:188) at java.lang.ClassLoader.loadClass(ClassLoader.java:307) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301) at java.lang.ClassLoader.loadClass(ClassLoader.java:252) at java.lang.ClassLoader.loadClassInternal(ClassLoader.java:320) ... 40 more 然后我的代码是这样的 ![图片说明](https://img-ask.csdn.net/upload/201509/24/1443061775_269490.jpg) ![图片说明](https://img-ask.csdn.net/upload/201509/24/1443061840_138393.jpg) ![图片说明](https://img-ask.csdn.net/upload/201509/24/1443061857_150773.png) ![图片说明](https://img-ask.csdn.net/upload/201509/24/1443061807_747717.png)

java.security.InvalidKeyException: Wrong key size

java.security.InvalidKeyException: Wrong key size at javax.crypto.spec.DESedeKeySpec.<init>(DESedeKeySpec.java:85) ~[na:1.8.0_121] at javax.crypto.spec.DESedeKeySpec.<init>(DESedeKeySpec.java:62) ~[na:1.8.0_121] at com.eastcom.ipnet.agent.util.ThreeDESUtil.des3EncodeECB(ThreeDESUtil.java:37) ~[classes/:na] at com.eastcom.ipnet.agent.service.impl.LdapAccountServiceImpl.passwordOperator(LdapAccountServiceImpl.java:246) ~[classes/:na] at com.eastcom.ipnet.agent.service.impl.LdapAccountServiceImpl$$FastClassBySpringCGLIB$$c64b97cc.invoke(<generated>) ~[classes/:na] at org.springframework.cglib.proxy.MethodProxy.invoke(MethodProxy.java:204) ~[spring-core-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.aop.framework.CglibAopProxy$DynamicAdvisedInterceptor.intercept(CglibAopProxy.java:669) ~[spring-aop-4.3.8.RELEASE.jar:4.3.8.RELEASE] at com.eastcom.ipnet.agent.service.impl.LdapAccountServiceImpl$$EnhancerBySpringCGLIB$$55ac0a20.passwordOperator(<generated>) ~[classes/:na] at com.eastcom.ipnet.agent.controller.AccountController.test(AccountController.java:81) ~[classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_144] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_144] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_144] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_144] at org.springframework.web.method.support.InvocableHandlerMethod.doInvoke(InvocableHandlerMethod.java:205) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:133) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:97) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandlerMethod(RequestMappingHandlerAdapter.java:827) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:738) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:85) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:963) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:897) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:970) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:861) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:846) ~[spring-webmvc-4.3.8.RELEASE.jar:4.3.8.RELEASE] at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) ~[tomcat-embed-websocket-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at com.alibaba.druid.support.http.WebStatFilter.doFilter(WebStatFilter.java:123) ~[druid-1.1.6.jar:1.1.6] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.springframework.web.filter.RequestContextFilter.doFilterInternal(RequestContextFilter.java:99) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.springframework.web.filter.HttpPutFormContentFilter.doFilterInternal(HttpPutFormContentFilter.java:105) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.springframework.web.filter.HiddenHttpMethodFilter.doFilterInternal(HiddenHttpMethodFilter.java:81) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.springframework.web.filter.CharacterEncodingFilter.doFilterInternal(CharacterEncodingFilter.java:197) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.springframework.web.filter.OncePerRequestFilter.doFilter(OncePerRequestFilter.java:107) ~[spring-web-4.3.8.RELEASE.jar:4.3.8.RELEASE] at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) ~[tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:478) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:80) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:799) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:861) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1455) [tomcat-embed-core-8.5.14.jar:8.5.14] at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) [tomcat-embed-core-8.5.14.jar:8.5.14] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149) [na:1.8.0_144] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624) [na:1.8.0_144] at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) [tomcat-embed-core-8.5.14.jar:8.5.14] at java.lang.Thread.run(Thread.java:748) [na:1.8.0_144] ![图片说明](https://img-ask.csdn.net/upload/201807/13/1531485351_840658.png)测试运行到图中标注的这行代码是就报上面的这个错了,求各路大神,看到的帮忙解答下,谢谢

java.net.BindException: Addressalreadyinuse:bind

java.net.BindException: Address already in use: bind 会的帮忙看下谢谢了,实在不会了! java.net.BindException: Address already in use: bind at sun.nio.ch.Net.bind0(Native Method) ~[na:1.8.0_121] at sun.nio.ch.Net.bind(Net.java:433) ~[na:1.8.0_121] at sun.nio.ch.Net.bind(Net.java:425) ~[na:1.8.0_121] at sun.nio.ch.ServerSocketChannelImpl.bind(ServerSocketChannelImpl.java:223) ~[na:1.8.0_121] at sun.nio.ch.ServerSocketAdaptor.bind(ServerSocketAdaptor.java:74) ~[na:1.8.0_121] at org.apache.tomcat.util.net.NioEndpoint.bind(NioEndpoint.java:340) ~[tomcat-embed-core-8.0.33.jar:8.0.33] at org.apache.tomcat.util.net.AbstractEndpoint.start(AbstractEndpoint.java:773) ~[tomcat-embed-core-8.0.33.jar:8.0.33] at org.apache.coyote.AbstractProtocol.start(AbstractProtocol.java:473) ~[tomcat-embed-core-8.0.33.jar:8.0.33] at org.apache.catalina.connector.Connector.startInternal(Connector.java:986) [tomcat-embed-core-8.0.33.jar:8.0.33] at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:147) [tomcat-embed-core-8.0.33.jar:8.0.33] at org.apache.catalina.core.StandardService.addConnector(StandardService.java:239) [tomcat-embed-core-8.0.33.jar:8.0.33] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.addPreviouslyRemovedConnectors(TomcatEmbeddedServletContainer.java:194) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.context.embedded.tomcat.TomcatEmbeddedServletContainer.start(TomcatEmbeddedServletContainer.java:151) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.startEmbeddedServletContainer(EmbeddedWebApplicationContext.java:293) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.finishRefresh(EmbeddedWebApplicationContext.java:141) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.context.support.AbstractApplicationContext.refresh(AbstractApplicationContext.java:541) [spring-context-4.2.6.RELEASE.jar:4.2.6.RELEASE] at org.springframework.boot.context.embedded.EmbeddedWebApplicationContext.refresh(EmbeddedWebApplicationContext.java:118) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.SpringApplication.refresh(SpringApplication.java:766) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.SpringApplication.createAndRefreshContext(SpringApplication.java:361) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:307) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1191) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at org.springframework.boot.SpringApplication.run(SpringApplication.java:1180) [spring-boot-1.3.5.RELEASE.jar:1.3.5.RELEASE] at com.nowcoder.ToutiaoApplication.main(ToutiaoApplication.java:16) [classes/:na] at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_121] at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_121] at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_121] at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_121] at org.springframework.boot.devtools.restart.RestartLauncher.run(RestartLauncher.java:49) [spring-boot-devtools-1.3.5.RELEASE.jar:1.3.5.RELEASE] 2017-02-10 18:27:02.955 ERROR 24196 --- [ restartedMain] o.apache.catalina.core.StandardService : Failed to start connector [Connector[HTTP/1.1-8080]]

java.lang.OutOfMemoryError: Java heap space java内存溢出问题 有错误信息

2013-12-26 11:18:09 [ERROR]-[rmss:165] Housekeeping log.error( : java.lang.OutOfMemoryError: Java heap space at java.lang.AbstractStringBuilder.<init>(AbstractStringBuilder.java:45) at java.lang.StringBuilder.<init>(StringBuilder.java:68) at org.logicalcobwebs.proxool.HouseKeeper.sweep(HouseKeeper.java:90) at org.logicalcobwebs.proxool.HouseKeeperThread.run(HouseKeeperThread.java:39) 2013-12-26 11:18:09 [ERROR]-[rmss:105] Prototype org.logicalcobwebs.proxool.ProxoolException: Unexpected prototyping problem at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:229) at org.logicalcobwebs.proxool.Prototyper.sweep(Prototyper.java:102) at org.logicalcobwebs.proxool.PrototyperThread.run(PrototyperThread.java:44) Caused by: java.lang.OutOfMemoryError: Java heap space at sun.security.util.DerInputBuffer.toByteArray(DerInputBuffer.java:51) at sun.security.util.DerInputStream.toByteArray(DerInputStream.java:131) at sun.security.x509.X500Name.parseDER(X500Name.java:767) at sun.security.x509.X500Name.<init>(X500Name.java:290) at sun.security.x509.CertificateIssuerName.<init>(CertificateIssuerName.java:65) at sun.security.x509.X509CertInfo.parse(X509CertInfo.java:668) at sun.security.x509.X509CertInfo.<init>(X509CertInfo.java:152) at sun.security.x509.X509CertImpl.parse(X509CertImpl.java:1729) at sun.security.x509.X509CertImpl.<init>(X509CertImpl.java:179) at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:90) at java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:305) at com.sun.net.ssl.internal.ssl.HandshakeMessage$CertificateMsg.<init>(HandshakeMessage.java:404) at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:124) at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516) at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1139) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1123) at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:154) at org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(DefaultConnectionBuilder.java:39) at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:159) ... 2 more Caused by: java.lang.OutOfMemoryError: Java heap space at sun.security.util.DerInputBuffer.toByteArray(DerInputBuffer.java:51) at sun.security.util.DerInputStream.toByteArray(DerInputStream.java:131) at sun.security.x509.X500Name.parseDER(X500Name.java:767) at sun.security.x509.X500Name.<init>(X500Name.java:290) at sun.security.x509.CertificateIssuerName.<init>(CertificateIssuerName.java:65) at sun.security.x509.X509CertInfo.parse(X509CertInfo.java:668) at sun.security.x509.X509CertInfo.<init>(X509CertInfo.java:152) at sun.security.x509.X509CertImpl.parse(X509CertImpl.java:1729) at sun.security.x509.X509CertImpl.<init>(X509CertImpl.java:179) at sun.security.provider.X509Factory.engineGenerateCertificate(X509Factory.java:90) at java.security.cert.CertificateFactory.generateCertificate(CertificateFactory.java:305) at com.sun.net.ssl.internal.ssl.HandshakeMessage$CertificateMsg.<init>(HandshakeMessage.java:404) at com.sun.net.ssl.internal.ssl.ClientHandshaker.processMessage(ClientHandshaker.java:124) at com.sun.net.ssl.internal.ssl.Handshaker.processLoop(Handshaker.java:516) at com.sun.net.ssl.internal.ssl.Handshaker.process_record(Handshaker.java:454) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.readRecord(SSLSocketImpl.java:884) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.performInitialHandshake(SSLSocketImpl.java:1112) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1139) at com.sun.net.ssl.internal.ssl.SSLSocketImpl.startHandshake(SSLSocketImpl.java:1123) at com.microsoft.sqlserver.jdbc.TDSChannel.enableSSL(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connectHelper(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.loginWithoutFailover(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerConnection.connect(Unknown Source) at com.microsoft.sqlserver.jdbc.SQLServerDriver.connect(Unknown Source) at java.sql.DriverManager.getConnection(DriverManager.java:582) at java.sql.DriverManager.getConnection(DriverManager.java:154) at org.logicalcobwebs.proxool.DefaultConnectionBuilder.buildConnection(DefaultConnectionBuilder.java:39) at org.logicalcobwebs.proxool.Prototyper.buildConnection(Prototyper.java:159) at org.logicalcobwebs.proxool.Prototyper.sweep(Prototyper.java:102) at org.logicalcobwebs.proxool.PrototyperThread.run(PrototyperThread.java:44) 将excle数据读取后插入数据库出错

手机端请求后台下载更新,出现错误java.io.IOException: 远程主机强迫关闭了一个现有的连接。

报错代码段 OutputStream toClient = new BufferedOutputStream(response.getOutputStream()); response.setContentType("application/octet-stream"); toClient.write(buffer);//这一行开始报错 toClient.flush(); toClient.close(); org.apache.catalina.connector.ClientAbortException: java.io.IOException: 远程主机强迫关闭了一个现有的连接。 at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:356) at org.apache.catalina.connector.OutputBuffer.appendByteArray(OutputBuffer.java:795) at org.apache.catalina.connector.OutputBuffer.append(OutputBuffer.java:724) at org.apache.catalina.connector.OutputBuffer.writeBytes(OutputBuffer.java:391) at org.apache.catalina.connector.OutputBuffer.write(OutputBuffer.java:369) at org.apache.catalina.connector.CoyoteOutputStream.write(CoyoteOutputStream.java:96) at java.io.BufferedOutputStream.write(BufferedOutputStream.java:122) at java.io.FilterOutputStream.write(FilterOutputStream.java:97) at com.inspur.mobile.controller.MobileController.download(MobileController.java:954) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.springframework.web.bind.annotation.support.HandlerMethodInvoker.invokeHandlerMethod(HandlerMethodInvoker.java:176) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.invokeHandlerMethod(AnnotationMethodHandlerAdapter.java:440) at org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter.handle(AnnotationMethodHandlerAdapter.java:428) at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:933) at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:867) at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:951) at org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:842) at javax.servlet.http.HttpServlet.service(HttpServlet.java:635) at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:827) at javax.servlet.http.HttpServlet.service(HttpServlet.java:742) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:231) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:193) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:166) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:198) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:96) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:493) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:140) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:81) at org.apache.catalina.valves.AbstractAccessLogValve.invoke(AbstractAccessLogValve.java:650) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:87) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:342) at org.apache.coyote.http11.Http11Processor.service(Http11Processor.java:800) at org.apache.coyote.AbstractProcessorLight.process(AbstractProcessorLight.java:66) at org.apache.coyote.AbstractProtocol$ConnectionHandler.process(AbstractProtocol.java:800) at org.apache.tomcat.util.net.NioEndpoint$SocketProcessor.doRun(NioEndpoint.java:1471) at org.apache.tomcat.util.net.SocketProcessorBase.run(SocketProcessorBase.java:49) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:745) Caused by: java.io.IOException: 远程主机强迫关闭了一个现有的连接。 at sun.nio.ch.SocketDispatcher.write0(Native Method) at sun.nio.ch.SocketDispatcher.write(SocketDispatcher.java:51) at sun.nio.ch.IOUtil.writeFromNativeBuffer(IOUtil.java:93) at sun.nio.ch.IOUtil.write(IOUtil.java:65) at sun.nio.ch.SocketChannelImpl.write(SocketChannelImpl.java:471) at org.apache.tomcat.util.net.NioChannel.write(NioChannel.java:134) at org.apache.tomcat.util.net.NioBlockingSelector.write(NioBlockingSelector.java:101) at org.apache.tomcat.util.net.NioSelectorPool.write(NioSelectorPool.java:157) at org.apache.tomcat.util.net.NioEndpoint$NioSocketWrapper.doWrite(NioEndpoint.java:1279) at org.apache.tomcat.util.net.SocketWrapperBase.doWrite(SocketWrapperBase.java:670) at org.apache.tomcat.util.net.SocketWrapperBase.writeBlocking(SocketWrapperBase.java:450) at org.apache.tomcat.util.net.SocketWrapperBase.write(SocketWrapperBase.java:388) at org.apache.coyote.http11.Http11OutputBuffer$SocketOutputBuffer.doWrite(Http11OutputBuffer.java:623) at org.apache.coyote.http11.filters.IdentityOutputFilter.doWrite(IdentityOutputFilter.java:116) at org.apache.coyote.http11.Http11OutputBuffer.doWrite(Http11OutputBuffer.java:225) at org.apache.coyote.Response.doWrite(Response.java:541) at org.apache.catalina.connector.OutputBuffer.realWriteBytes(OutputBuffer.java:351) ... 44 more

安卓:java.lang.NullPointerException:

logcat显示错误: FATAL EXCEPTION: main Process: org.droidplanner, PID: 21924 java.lang.RuntimeException: Unable to resume activity {org.droidplanner/org.droidplanner.android.activities.FlightActivity}: java.lang.NullPointerException: Attempt to read from field 'android.content.SharedPreferences org.droidplanner.android.utils.prefs.DroidPlannerPrefs.prefs' on a null object reference at android.app.ActivityThread.performResumeActivity(ActivityThread.java:3019) at android.app.ActivityThread.handleResumeActivity(ActivityThread.java:3050) at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2425) at android.app.ActivityThread.access$900(ActivityThread.java:154) at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1321) at android.os.Handler.dispatchMessage(Handler.java:102) at android.os.Looper.loop(Looper.java:135) at android.app.ActivityThread.main(ActivityThread.java:5294) at java.lang.reflect.Method.invoke(Native Method) at java.lang.reflect.Method.invoke(Method.java:372) at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:904) at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:699)

java.net.UnknownHostException: src="https运行报错

用InputStream解析url 但是运行时报错 URL url = new URL("http://"+matcher2.group()); URLConnection con = url.openConnection(); con.setConnectTimeout(120*1000); InputStream is = con.getInputStream(); 下面是报错 java.net.UnknownHostException: src="https at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at sun.net.NetworkClient.doConnect(NetworkClient.java:175) at sun.net.www.http.HttpClient.openServer(HttpClient.java:463) at sun.net.www.http.HttpClient.openServer(HttpClient.java:558) at sun.net.www.http.HttpClient.<init>(HttpClient.java:242) at sun.net.www.http.HttpClient.New(HttpClient.java:339) at sun.net.www.http.HttpClient.New(HttpClient.java:357) at sun.net.www.protocol.http.HttpURLConnection.getNewHttpClient(HttpURLConnection.java:1220) at sun.net.www.protocol.http.HttpURLConnection.plainConnect0(HttpURLConnection.java:1156) at sun.net.www.protocol.http.HttpURLConnection.plainConnect(HttpURLConnection.java:1050) at sun.net.www.protocol.http.HttpURLConnection.connect(HttpURLConnection.java:984) at sun.net.www.protocol.http.HttpURLConnection.getInputStream0(HttpURLConnection.java:1564) at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1492)

插件开发 系统关闭后报 swt.SWTException:Widget is disposed;

插件项目关闭后报这个错误。怎么解决啊。 是这个 "org.eclipse.core.commands" 没加载进来吗? 这个包我查了下 已经有了。 !ENTRY org.eclipse.core.commands 4 2 2017-11-23 14:43:02.263 !MESSAGE Problems occurred when invoking code from plug-in: "org.eclipse.core.commands". !STACK 0 org.eclipse.swt.SWTException: Widget is disposed at org.eclipse.swt.SWT.error(SWT.java:4533) at org.eclipse.swt.SWT.error(SWT.java:4448) at org.eclipse.swt.SWT.error(SWT.java:4419) at org.eclipse.swt.widgets.Widget.error(Widget.java:482) at org.eclipse.swt.widgets.Widget.checkWidget(Widget.java:354) at org.eclipse.swt.widgets.Tree.getItems(Tree.java:3351) at org.eclipse.ui.views.properties.PropertySheetViewer.findItem(PropertySheetViewer.java:443) at org.eclipse.ui.views.properties.PropertySheetViewer.access$3(PropertySheetViewer.java:441) at org.eclipse.ui.views.properties.PropertySheetViewer$3.valueChanged(PropertySheetViewer.java:342) at org.eclipse.ui.views.properties.PropertySheetEntry.fireValueChanged(PropertySheetEntry.java:327) at org.eclipse.ui.views.properties.PropertySheetEntry.setValues(PropertySheetEntry.java:731) at org.eclipse.ui.views.properties.PropertySheetEntry.refreshValues(PropertySheetEntry.java:588) at org.eclipse.ui.views.properties.PropertySheetEntry.refreshChildEntries(PropertySheetEntry.java:542) at org.eclipse.ui.views.properties.PropertySheetEntry.refreshFromRoot(PropertySheetEntry.java:566) at com.fiberhome.ason.platform.operation.UndoablePropertySheetEntry.historyNotification(UndoablePropertySheetEntry.java:39) at org.eclipse.core.commands.operations.DefaultOperationHistory$2.run(DefaultOperationHistory.java:868) at org.eclipse.core.runtime.SafeRunner.run(SafeRunner.java:42) at org.eclipse.core.commands.operations.DefaultOperationHistory.notifyListeners(DefaultOperationHistory.java:857) at org.eclipse.core.commands.operations.DefaultOperationHistory.notifyRemoved(DefaultOperationHistory.java:968) at org.eclipse.core.commands.operations.DefaultOperationHistory.internalRemove(DefaultOperationHistory.java:832) at org.eclipse.core.commands.operations.DefaultOperationHistory.flushUndo(DefaultOperationHistory.java:599) at org.eclipse.core.commands.operations.DefaultOperationHistory.dispose(DefaultOperationHistory.java:313) at org.eclipse.ui.internal.operations.WorkbenchOperationSupport.dispose(WorkbenchOperationSupport.java:58) at org.eclipse.ui.internal.WorkbenchPlugin.reset(WorkbenchPlugin.java:257) at org.eclipse.ui.internal.Workbench.shutdown(Workbench.java:3061) at org.eclipse.ui.internal.Workbench.busyClose(Workbench.java:1174) at org.eclipse.ui.internal.Workbench.lambda$4(Workbench.java:1424) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.Workbench.close(Workbench.java:1424) at org.eclipse.ui.internal.Workbench.close(Workbench.java:1397) at org.eclipse.ui.internal.WorkbenchWindow.busyClose(WorkbenchWindow.java:1606) at org.eclipse.ui.internal.WorkbenchWindow.access$18(WorkbenchWindow.java:1552) at org.eclipse.ui.internal.WorkbenchWindow$11.run(WorkbenchWindow.java:1638) at org.eclipse.swt.custom.BusyIndicator.showWhile(BusyIndicator.java:70) at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1635) at org.eclipse.ui.internal.WorkbenchWindow.close(WorkbenchWindow.java:1649) at org.eclipse.ui.internal.WorkbenchWindow$6.close(WorkbenchWindow.java:530) at org.eclipse.e4.ui.workbench.renderers.swt.WBWRenderer$3.shellClosed(WBWRenderer.java:615) at org.eclipse.swt.widgets.TypedListener.handleEvent(TypedListener.java:99) at org.eclipse.swt.widgets.EventTable.sendEvent(EventTable.java:86) at org.eclipse.swt.widgets.Display.sendEvent(Display.java:4428) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1079) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1103) at org.eclipse.swt.widgets.Widget.sendEvent(Widget.java:1088) at org.eclipse.swt.widgets.Decorations.closeWidget(Decorations.java:316) at org.eclipse.swt.widgets.Decorations.WM_CLOSE(Decorations.java:1729) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4845) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:359) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1657) at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2199) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5178) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2555) at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:506) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4941) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:359) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1657) at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2199) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5178) at org.eclipse.swt.internal.win32.OS.DefWindowProcW(Native Method) at org.eclipse.swt.internal.win32.OS.DefWindowProc(OS.java:2555) at org.eclipse.swt.widgets.Shell.callWindowProc(Shell.java:506) at org.eclipse.swt.widgets.Control.windowProc(Control.java:4941) at org.eclipse.swt.widgets.Canvas.windowProc(Canvas.java:359) at org.eclipse.swt.widgets.Decorations.windowProc(Decorations.java:1657) at org.eclipse.swt.widgets.Shell.windowProc(Shell.java:2199) at org.eclipse.swt.widgets.Display.windowProc(Display.java:5178) at org.eclipse.swt.internal.win32.OS.DispatchMessageW(Native Method) at org.eclipse.swt.internal.win32.OS.DispatchMessage(OS.java:2560) at org.eclipse.swt.widgets.Display.readAndDispatch(Display.java:3815) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine$5.run(PartRenderingEngine.java:1150) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.e4.ui.internal.workbench.swt.PartRenderingEngine.run(PartRenderingEngine.java:1039) at org.eclipse.e4.ui.internal.workbench.E4Workbench.createAndRunUI(E4Workbench.java:153) at org.eclipse.ui.internal.Workbench.lambda$3(Workbench.java:680) at org.eclipse.core.databinding.observable.Realm.runWithDefault(Realm.java:336) at org.eclipse.ui.internal.Workbench.createAndRunWorkbench(Workbench.java:594) at org.eclipse.ui.PlatformUI.createAndRunWorkbench(PlatformUI.java:148) at com.fiberhome.ason.platform.runtime.PlannerApplication.start(PlannerApplication.java:29) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:196) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:388) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:243) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:653) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:590) at org.eclipse.equinox.launcher.Main.run(Main.java:1499) at org.eclipse.equinox.launcher.Main.main(Main.java:1472)

严重: ContainerBase.addChild: start和严重: Error deploying web application directory

在Myeclipse2016ci7平台,启动Tomcat9.0的时候出现了两个ERROR 一: 严重: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/homework_P150_1_myeclipse]] at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:441) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198) at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:742) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:718) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:703) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1141) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1876) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1053) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:428) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1585) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:367) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:966) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:682) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492) Caused by: java.lang.IllegalArgumentException: The servlets named [Circle_count_P_Area] and [servlets.Circle_count_P_Area] are both mapped to the url-pattern [/Circle_count_P_Area] which is not permitted at org.apache.tomcat.util.descriptor.web.WebXml.addServletMappingDecoded(WebXml.java:329) at org.apache.tomcat.util.descriptor.web.WebXml.addServletMapping(WebXml.java:322) at org.apache.catalina.startup.ContextConfig.processAnnotationWebServlet(ContextConfig.java:2418) at org.apache.catalina.startup.ContextConfig.processAnnotationsStream(ContextConfig.java:2095) at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1981) at org.apache.catalina.startup.ContextConfig.processAnnotationsWebResource(ContextConfig.java:1975) at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1146) at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:765) at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:4989) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) ... 38 more ** 二: 严重: Error deploying web application directory [D:\JavaEE web\Apache Software Foundation\Tomcat 9.0\webapps\homework_P150_1_myeclipse]** **java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: Failed to start component [StandardEngine[Catalina].StandardHost[localhost].StandardContext[/homework_P150_1_myeclipse]]**_ at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:746) at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:718) at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:703) at org.apache.catalina.startup.HostConfig.deployDirectory(HostConfig.java:1141) at org.apache.catalina.startup.HostConfig$DeployDirectory.run(HostConfig.java:1876) at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:112) at org.apache.catalina.startup.HostConfig.deployDirectories(HostConfig.java:1053) at org.apache.catalina.startup.HostConfig.deployApps(HostConfig.java:428) at org.apache.catalina.startup.HostConfig.start(HostConfig.java:1585) at org.apache.catalina.startup.HostConfig.lifecycleEvent(HostConfig.java:308) at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123) at org.apache.catalina.util.LifecycleBase.setStateInternal(LifecycleBase.java:424) at org.apache.catalina.util.LifecycleBase.setState(LifecycleBase.java:367) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:966) at org.apache.catalina.core.StandardHost.startInternal(StandardHost.java:839) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1427) at org.apache.catalina.core.ContainerBase$StartChild.call(ContainerBase.java:1417) at java.util.concurrent.FutureTask.run(FutureTask.java:266) at org.apache.tomcat.util.threads.InlineExecutorService.execute(InlineExecutorService.java:75) at java.util.concurrent.AbstractExecutorService.submit(AbstractExecutorService.java:134) at org.apache.catalina.core.ContainerBase.startInternal(ContainerBase.java:943) at org.apache.catalina.core.StandardEngine.startInternal(StandardEngine.java:258) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardService.startInternal(StandardService.java:422) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.core.StandardServer.startInternal(StandardServer.java:770) at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183) at org.apache.catalina.startup.Catalina.start(Catalina.java:682) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:498) at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:350) at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:492) 怎么解决?

严重: [java.lang.NumberFormatException: null]

求助,在学习jsp中遇到这个问题,望大神帮助。 这是我的代码: <body> <% int id = Integer.parseInt(request.getParameter("id")); String dbDriver = "com.mysql.jdbc.Driver"; String dbUrl = "jdbc:mysql://localhost:3306/jsp"; String dbUser = "root"; String dbPass = "root"; Class.forName(dbDriver); Connection conn=DriverManager.getConnection(dbUrl, dbUser, dbPass); String sql="select * from admin where id="+id; Statement stmt=conn.createStatement(); ResultSet rs=stmt.executeQuery(sql); if(rs.next()){ %> <form action="do_update.jsp? id=<%=rs.getInt("id") %>" method="post"> <input type="text" name="username" value=<%=rs.getString("username") %>><br> <input type="text" name="password" value=<%=rs.getString("password") %>><br> <input type="submit" value="更新"> </form> <% } %> </body> 报错: 严重: Servlet.service() for servlet [jsp] in context with path [/hello5] threw exception [java.lang.NumberFormatException: null] with root cause java.lang.NumberFormatException: null at java.lang.Integer.parseInt(Integer.java:454) at java.lang.Integer.parseInt(Integer.java:527) at org.apache.jsp.do_005fupdate_jsp._jspService(do_005fupdate_jsp.java:98) at org.apache.jasper.runtime.HttpJspBase.service(HttpJspBase.java:70) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:432) at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:395) at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:339) at javax.servlet.http.HttpServlet.service(HttpServlet.java:727) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:303) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:52) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:241) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:220) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:122) at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:503) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:170) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:103) at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:950) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:116) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:421) at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1070) at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:611) at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:314) at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145) at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615) at org.apache.tomcat.util.threads.TaskThread$WrappingRunnable.run(TaskThread.java:61) at java.lang.Thread.run(Thread.java:744)

Hadoop+Hbase报错java.net.UnknownHostException:

问题:java.net.UnknownHostException: Invalid host name: local host is: (unknown); destination host is: "master":9000; java.net.UnknownHostException; log错误日志 2017-07-13 21:26:45,915 FATAL [master:16000.activeMasterManager] master.HMaster: Failed to become active master java.net.UnknownHostException: Invalid host name: local host is: (unknown); destination host is: "master":9000; java.net.UnknownHostException; For more details see: http://wiki.apache.org/hadoop/UnknownHost at sun.reflect.NativeConstructorAccessorImpl.newInstance0(Native Method) at sun.reflect.NativeConstructorAccessorImpl.newInstance(NativeConstructorAccessorImpl.java:57) at sun.reflect.DelegatingConstructorAccessorImpl.newInstance(DelegatingConstructorAccessorImpl.java:45) at java.lang.reflect.Constructor.newInstance(Constructor.java:526) at org.apache.hadoop.net.NetUtils.wrapWithMessage(NetUtils.java:792) at org.apache.hadoop.net.NetUtils.wrapException(NetUtils.java:744) at org.apache.hadoop.ipc.Client$Connection.<init>(Client.java:409) at org.apache.hadoop.ipc.Client.getConnection(Client.java:1518) at org.apache.hadoop.ipc.Client.call(Client.java:1451) at org.apache.hadoop.ipc.Client.call(Client.java:1412) at org.apache.hadoop.ipc.ProtobufRpcEngine$Invoker.invoke(ProtobufRpcEngine.java:229) at com.sun.proxy.$Proxy18.setSafeMode(Unknown Source) at org.apache.hadoop.hdfs.protocolPB.ClientNamenodeProtocolTranslatorPB.setSafeMode(ClientNamenodeProtocolTranslatorPB.java:666) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.io.retry.RetryInvocationHandler.invokeMethod(RetryInvocationHandler.java:191) at org.apache.hadoop.io.retry.RetryInvocationHandler.invoke(RetryInvocationHandler.java:102) at com.sun.proxy.$Proxy19.setSafeMode(Unknown Source) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.lang.reflect.Method.invoke(Method.java:606) at org.apache.hadoop.hbase.fs.HFileSystem$1.invoke(HFileSystem.java:279) at com.sun.proxy.$Proxy20.setSafeMode(Unknown Source) at org.apache.hadoop.hdfs.DFSClient.setSafeMode(DFSClient.java:2596) at org.apache.hadoop.hdfs.DistributedFileSystem.setSafeMode(DistributedFileSystem.java:1223) at org.apache.hadoop.hdfs.DistributedFileSystem.setSafeMode(DistributedFileSystem.java:1207) at org.apache.hadoop.hbase.util.FSUtils.isInSafeMode(FSUtils.java:525) at org.apache.hadoop.hbase.util.FSUtils.waitOnSafeMode(FSUtils.java:971) at org.apache.hadoop.hbase.master.MasterFileSystem.checkRootDir(MasterFileSystem.java:429) at org.apache.hadoop.hbase.master.MasterFileSystem.createInitialFileSystemLayout(MasterFileSystem.java:153) at org.apache.hadoop.hbase.master.MasterFileSystem.<init>(MasterFileSystem.java:128) at org.apache.hadoop.hbase.master.HMaster.finishActiveMasterInitialization(HMaster.java:693) at org.apache.hadoop.hbase.master.HMaster.access$600(HMaster.java:189) at org.apache.hadoop.hbase.master.HMaster$2.run(HMaster.java:1803) at java.lang.Thread.run(Thread.java:745) Caused by: java.net.UnknownHostException ... 32 more 2017-07-13 21:26:45,924 FATAL [master:16000.activeMasterManager] master.HMaster: Unhandled exception. 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