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shiro 拦截的问题

0

1

shiro

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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报错说找不到对应的sql映射，但是检查名称空间.方法标签id是正确对应的

1

mybatis

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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使用Jmeter压测的时候报错

1

压测

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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Memcache缓存加载，加载不成功

0

1

缓存相关

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

 //查询所有数据信息
    @Override
    public List<Paper> queryAllPaper() throws Exception {
        List<Paper> paperList = memcachedClient.get("paperList");
        try {
            if (paperList != null) {
                logger.info("---从缓存中查询所有---");
                paperList =memcachedClient.get("paperList");
                logger.info("---从缓存查询ID等于448的记录:"+memcachedClient.get("448")+"---");
                logger.info("---从数据库查询ID等于448的记录:"+paperDao.queryById(448)+"---");
            } else {
                logger.info("---从数据库中查询所有---");
                paperList = paperDao.queryAllPaper();
                boolean list = memcachedClient.set("paperList", 0, paperList);
                logger.info("---新增所有数据缓存:" + list+"---");
                logger.info("---从缓存查询ID等于448的记录:"+memcachedClient.get("448")+"---");
                logger.info("---从数据库查询ID等于448的记录:"+paperDao.queryById(448)+"---");
            }
        } catch (Throwable t) {
            t.printStackTrace();
        }
        return paperDao.queryAllPaper();
    }



    //删除论文
    @Override
    public boolean deletePaperById(long id) throws Exception {
        boolean delete = false;
        logger.info("即将删除的id："+id);
        logger.info("memcachedClient.get(String.valueOf(id)):"+memcachedClient.get(String.valueOf(id)));
        if (memcachedClient.get(String.valueOf(id)) != null) {
            delete = memcachedClient.delete(String.valueOf(id));
            logger.info("---删除缓存数据：" + delete+"---");
        } else {
            logger.info("---没有该数据可以删除的数据---");
        }
        if (delete) {
            memcachedClient.flushAll();
            logger.info("---删除信息，刷新缓存---");

        }
        return paperDao.deletePaperById(id);
    }

[INFO ] 2018-08-17 06:39:49,253 method:com.controller.PaperController.queryAllPaper(PaperController.java:34) 跳转到查询所有数据页面.
[INFO ] 2018-08-17 06:39:49,254 method:com.aop.AopController.printExecTime(AopController.java:66) com.controller.PaperController.queryAllPaper Controller 类方法执行耗时: 852
17-Aug-2018 06:39:49.314 INFO [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory C:\Program Files\Apache Software Foundation\Tomcat 8.0\webapps\manager has finished in 76 ms
[INFO ] 2018-08-17 06:46:26,688 method:com.controller.PaperController.deleteUser(PaperController.java:55) controller:开始删除数据...
[INFO ] 2018-08-17 06:46:26,689 method:com.aop.AopImpl.timeAround(AopImpl.java:36) ---进入Database类方法切面中---

[INFO ] 2018-08-17 06:46:26,690 method:com.aop.AopImpl.timeAround(AopImpl.java:45) ---开始执行时间:2018-08-17 06:46:26
[INFO ] 2018-08-17 06:46:26,690 method:com.service.impl.PaperServiceImpl.deletePaperById(PaperServiceImpl.java:45) 即将删除的id：457
[INFO ] 2018-08-17 06:46:26,700 method:com.service.impl.PaperServiceImpl.deletePaperById(PaperServiceImpl.java:46) memcachedClient.get(String.valueOf(id)):null
[INFO ] 2018-08-17 06:46:26,712 method:com.service.impl.PaperServiceImpl.deletePaperById(PaperServiceImpl.java:51) ---没有该数据可以删除的数据---
[INFO ] 2018-08-17 06:46:35,238 method:com.aop.AopImpl.timeAround(AopImpl.java:36) ---进入Database类方法切面中---

[INFO ] 2018-08-17 06:46:35,239 method:com.aop.AopImpl.timeAround(AopImpl.java:45) ---开始执行时间:2018-08-17 06:46:35
[INFO ] 2018-08-17 06:46:45,866 method:org.springframework.beans.factory.xml.XmlBeanDefinitionReader.loadBeanDefinitions(XmlBeanDefinitionReader.java:316) Loading XML bean definitions from class path resource [org/springframework/jdbc/support/sql-error-codes.xml]
[INFO ] 2018-08-17 06:46:45,896 method:org.springframework.jdbc.support.SQLErrorCodesFactory.<init>(SQLErrorCodesFactory.java:126) SQLErrorCodes loaded: [DB2, Derby, H2, HSQL, Informix, MS-SQL, MySQL, Oracle, PostgreSQL, Sybase]
[ERROR] 2018-08-17 06:46:45,907 method:com.aop.AopImpl.timeAround(AopImpl.java:50) ---统计DataBase方法执行耗时环绕通知出错---
org.springframework.dao.RecoverableDataAccessException: 
### Error updating database.  Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 416,483 milliseconds ago.  The last packet sent successfully to the server was 19,130 milliseconds ago.
### The error may involve com.dao.PaperDao.deletePaperById-Inline
### The error occurred while setting parameters
### SQL: DELETE FROM paper WHERE paper_id=?
### Cause: com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

The last packet successfully received from the server was 416,483 milliseconds ago.  The last packet sent successfully to the server was 19,130 milliseconds ago.
; SQL []; Communications link failure

The last packet successfully received from the server was 416,483 milliseconds ago.  The last packet sent successfully to the server was 19,130 milliseconds ago.; nested exception is com.mysql.jdbc.exceptions.jdbc4.CommunicationsException: Communications link failure

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如何快速看懂源码

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

public final class UploadManager {
    private final Client client;
    private final Recorder recorder;
    private final Configuration configuration;

public UploadManager(Configuration config) {
        this(config, (Recorder)null);
    }

public UploadManager(Configuration config, Recorder recorder) {
        this.configuration = config.clone();
        this.client = new Client(this.configuration);
        this.recorder = recorder;
    }

private static void checkArgs(String key, byte[] data, File f, String token) {
        String message = null;
        if (f == null && data == null) {
            message = "no input data";
        } else if (token == null || token.equals("")) {
            message = "no token";
        }

if (message != null) {
            throw new IllegalArgumentException(message);
        }
    }

private static StringMap filterParam(StringMap params) {
        final StringMap ret = new StringMap();
        if (params == null) {
            return ret;
        } else {
            params.forEach(new Consumer() {
                public void accept(String key, Object value) {
                    if (value != null) {
                        String val = value.toString();
                        if (key.startsWith("x:") && !val.equals("")) {
                            ret.put(key, val);
                        }

}
                }
            });
            return ret;
        }
    }

public Response put(byte[] data, String key, String token) throws QiniuException {
        return this.put((byte[])data, key, token, (StringMap)null, (String)null, false);
    }

public Response put(byte[] data, String key, String token, StringMap params, String mime, boolean checkCrc) throws QiniuException {
        checkArgs(key, data, (File)null, token);
        if (mime == null) {
            mime = "application/octet-stream";
        }

params = filterParam(params);
        return (new FormUploader(this.client, token, key, data, params, mime, checkCrc, this.configuration)).upload();
    }

public Response put(String filePath, String key, String token) throws QiniuException {
        return this.put((String)filePath, key, token, (StringMap)null, (String)null, false);
    }

public Response put(String filePath, String key, String token, StringMap params, String mime, boolean checkCrc) throws QiniuException {
        return this.put(new File(filePath), key, token, params, mime, checkCrc);
    }

public Response put(File file, String key, String token) throws QiniuException {
        return this.put((File)file, key, token, (StringMap)null, (String)null, false);
    }

public Response put(File file, String key, String token, StringMap params, String mime, boolean checkCrc) throws QiniuException {
        checkArgs(key, (byte[])null, file, token);
        if (mime == null) {
            mime = "application/octet-stream";
        }

params = filterParam(params);
        long size = file.length();
        if (size <= (long)this.configuration.putThreshold) {
            return (new FormUploader(this.client, token, key, file, params, mime, checkCrc, this.configuration)).upload();
        } else {
            ResumeUploader uploader = new ResumeUploader(this.client, token, key, file, params, mime, this.recorder, this.configuration);
            return uploader.upload();
        }
    }

public void asyncPut(byte[] data, String key, String token, StringMap params, String mime, boolean checkCrc, UpCompletionHandler handler) throws IOException {
        checkArgs(key, data, (File)null, token);
        if (mime == null) {
            mime = "application/octet-stream";
        }

params = filterParam(params);
        (new FormUploader(this.client, token, key, data, params, mime, checkCrc, this.configuration)).asyncUpload(handler);
    }

public Response put(InputStream stream, String key, String token, StringMap params, String mime) throws QiniuException {
        String message = null;
        if (stream == null) {
            message = "no input data";
        } else if (token == null || token.equals("")) {
            message = "no token";
        }

if (message != null) {
            throw new IllegalArgumentException(message);
        } else {
            StreamUploader uploader = new StreamUploader(this.client, token, key, stream, params, mime, this.configuration);
            return uploader.upload();
        }
    }
}

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Tomcat404、500问题的描述

1

jetty/tomcat

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

spring和junit整合运行测试类时无法找到元素

0

1

spring

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

登录拦截异常

1

interceptor

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

Mybatis 中如何通过下标取出对象中的数组属性的值?

1

mybatis

class="cursor-pointer"> 详细描述

该问题已被官方收录

使用ResourceBundle时无法读取.properties文件

1

JDBC

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

private static ResourceBundle rb = ResourceBundle.getBundle("mysql.properties");

    static {
        DRIVER = rb.getString("jdbc.driver");
        URL = rb.getString("jdbc.url");
        USERNAME = rb.getString("jdbc.username");
        PASSWORD = rb.getString("jdbc.password");
        try {
            Class.forName(DRIVER);
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
            System.out.println("加载驱动失败");
        }
    }

java.lang.NoClassDefFoundError: Could not initialize class com.hzw.util.DBUtil

at com.hzw.dao.impl.StudentDaoImpl.addStu(StudentDaoImpl.java:33)
	at com.hzw.dao.impl.StudentDaoImplTest.addStu(StudentDaoImplTest.java:21)
	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.junit.internal.runners.TestMethodRunner.executeMethodBody(TestMethodRunner.java:99)
	at org.junit.internal.runners.TestMethodRunner.runUnprotected(TestMethodRunner.java:81)
	at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
	at org.junit.internal.runners.TestMethodRunner.runMethod(TestMethodRunner.java:75)
	at org.junit.internal.runners.TestMethodRunner.run(TestMethodRunner.java:45)
	at org.junit.internal.runners.TestClassMethodsRunner.invokeTestMethod(TestClassMethodsRunner.java:71)
	at org.junit.internal.runners.TestClassMethodsRunner.run(TestClassMethodsRunner.java:35)
	at org.junit.internal.runners.TestClassRunner$1.runUnprotected(TestClassRunner.java:42)
	at org.junit.internal.runners.BeforeAndAfterRunner.runProtected(BeforeAndAfterRunner.java:34)
	at org.junit.internal.runners.TestClassRunner.run(TestClassRunner.java:52)
	at org.junit.runner.JUnitCore.run(JUnitCore.java:121)
	at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:68)
	at com.intellij.rt.execution.junit.IdeaTestRunner$Repeater.startRunnerWithArgs(IdeaTestRunner.java:47)
	at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:242)
	at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:70)

Process finished with exit code -1