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该问题已被官方收录

pom.xml添加ar包后project标红

1

linux命令

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

Spring Security使用JPA连接数据库后无法正确读取到权限

1

springcloud

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

package com.forezp.config;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.annotation.Configuration;
import org.springframework.security.config.annotation.authentication.builders.AuthenticationManagerBuilder;
import org.springframework.security.config.annotation.method.configuration.EnableGlobalMethodSecurity;
import org.springframework.security.config.annotation.web.builders.HttpSecurity;
import org.springframework.security.config.annotation.web.configuration.EnableWebSecurity;
import org.springframework.security.config.annotation.web.configuration.WebSecurityConfigurerAdapter;
import org.springframework.security.core.userdetails.UserDetailsService;

//启动Security
@EnableWebSecurity
//声明配置文件
@Configuration
/**
 * spring Security默认是禁用注解的，要想开启注解，
 * 需要在继承WebSecurityConfigurerAdapter的类上加@EnableGlobalMethodSecurity注解，
 * 来判断用户对某个控制层的方法是否具有访问权限
 */
@EnableGlobalMethodSecurity(prePostEnabled = true)
public class SecurityConfig extends WebSecurityConfigurerAdapter {

	/**
	 * 自动注入用户信息接口
	 */
	@Autowired
	private UserDetailsService userDetailsService;
	/**
	 * @formatter:off
	 * 设置权限拦截规则
	 * @param http
	 * @throws Exception
	 */
	@Override
	protected void configure(HttpSecurity http) throws Exception {
		http
				//授权请求
				.authorizeRequests()
				//设置路径拦截规则,parmitAll():全部允许
				.antMatchers("/css/**", "/index").permitAll()
				//拥有USER属性才可通过,区分大小写
				.antMatchers("/user/**").hasAnyRole("ADMIN","USER")
				.antMatchers("/blogs/**").hasAnyRole("ADMIN","USER")
				.and()
				//设置默认表单跳转
				.formLogin()
				//设置登录页面
				.loginPage("/login")
				//设置登录失败页面
				.failureUrl("/login-error")
				.and()
				//设置异常处理页面
				.exceptionHandling().accessDeniedPage("/401");

		http
				//设置登出页面
				.logout()
				//设置注销成功页面
				.logoutSuccessUrl("/");
	}

	/**
	 *自动注入认证管理器
	 * 全局配置:通过认证管理生成器注入用户信息
	 */
	@Autowired
	public void configureGlobal(AuthenticationManagerBuilder auth) throws Exception {
		//auth
		//	//在内存验证中设置用户
		//	.inMemoryAuthentication()
		//		//创建一个名字为forezp,密码为123456，角色为USER的用户
		//		.withUser("forezp").password("123456").roles("USER");
		//auth
		//		.inMemoryAuthentication()
		//		.withUser("test").password("123456").roles("ADMIN");
		auth.userDetailsService(userDetailsService);
	}
	// @formatter:on


//	@Bean
//	public UserDetailsService userDetailsService() {
//		InMemoryUserDetailsManager manager = new InMemoryUserDetailsManager(); // 在内存中存放用户信息
//		manager.createUser(User.withUsername("forezp").password("123456").roles("USER").build());
//		manager.createUser(User.withUsername("admin").password("123456").roles("USER","ADMIN").build());
//		return manager;
//	}
}

该问题已被官方收录

memcached 无法启动，监听远程ip

1

class="cursor-pointer"> 详细描述

./memcached -p 11211 -m 64m -l xxx.xxx.xxx.xxx -p 11211 -vv -u root  使用前面参数启动memcached ，其中 xxx.xxx.xxx.xxx为远程ip地址，执行前面命名无法启动memcached，进程里没有memcached，但若把远程ip去掉换为默认的本地ip，即127.0.0.1，则能启动，何解？
[root@VM_0_9_centos bin]# ./memcached -p 11211 -m 64m -l xxx.xxx.xxx.xxx -p 11211 -vv -u root
slab class   1: chunk size        96 perslab   10922
slab class   2: chunk size       120 perslab    8738
slab class   3: chunk size       152 perslab    6898
slab class   4: chunk size       192 perslab    5461
slab class   5: chunk size       240 perslab    4369
slab class   6: chunk size       304 perslab    3449
slab class   7: chunk size       384 perslab    2730
slab class   8: chunk size       480 perslab    2184
slab class   9: chunk size       600 perslab    1747
slab class  10: chunk size       752 perslab    1394
slab class  11: chunk size       944 perslab    1110
slab class  12: chunk size      1184 perslab     885
slab class  13: chunk size      1480 perslab     708
slab class  14: chunk size      1856 perslab     564
slab class  15: chunk size      2320 perslab     451
slab class  16: chunk size      2904 perslab     361
slab class  17: chunk size      3632 perslab     288
slab class  18: chunk size      4544 perslab     230
slab class  19: chunk size      5680 perslab     184
slab class  20: chunk size      7104 perslab     147
slab class  21: chunk size      8880 perslab     118
slab class  22: chunk size     11104 perslab      94
slab class  23: chunk size     13880 perslab      75
slab class  24: chunk size     17352 perslab      60
slab class  25: chunk size     21696 perslab      48
slab class  26: chunk size     27120 perslab      38
slab class  27: chunk size     33904 perslab      30
slab class  28: chunk size     42384 perslab      24
slab class  29: chunk size     52984 perslab      19
slab class  30: chunk size     66232 perslab      15
slab class  31: chunk size     82792 perslab      12
slab class  32: chunk size    103496 perslab      10
slab class  33: chunk size    129376 perslab       8
slab class  34: chunk size    161720 perslab       6
slab class  35: chunk size    202152 perslab       5
slab class  36: chunk size    252696 perslab       4
slab class  37: chunk size    315872 perslab       3
slab class  38: chunk size    394840 perslab       2
slab class  39: chunk size    524288 perslab       2
bind(): Cannot assign requested address
failed to listen on TCP port 11211: Cannot assign requested address

该问题已被官方收录

eclipse luna4.4javaEE版本运行javaweb程序时突然崩溃

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

该问题已被官方收录

redis项目运行问题

0

1

压测

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

 @RequestMapping(value = "/redisjsp",method = RequestMethod.GET)
    public ModelAndView getAllBook2(ModelMap modelMap){
        List<Book> list = bookJedisService.readAllBook();
        modelMap.addAttribute("list",list);
        return new ModelAndView("book",modelMap);
    }

15-Jun-2018 11:15:14.807 ���� [RMI TCP Connection(5)-127.0.0.1] org.apache.tomcat.util.descriptor.web.WebXmlParser.parseWebXml Parse error in application web.xml file at file:/C:/Users/Administrator/Desktop/task6/target/task5-1.0-SNAPSHOT/WEB-INF/web.xml
 org.xml.sax.SAXParseException; systemId: file:/C:/Users/Administrator/Desktop/task6/target/task5-1.0-SNAPSHOT/WEB-INF/web.xml; lineNumber: 78; columnNumber: 13; Error at (78, 13) : taglib definition not consistent with specification version
	at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:1892)
	at org.apache.tomcat.util.digester.Digester.createSAXException(Digester.java:1924)
	at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1184)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.startElement(AbstractSAXParser.java:509)
	at com.sun.org.apache.xerces.internal.impl.dtd.XMLDTDValidator.startElement(XMLDTDValidator.java:745)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanStartElement(XMLDocumentFragmentScannerImpl.java:1359)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl$FragmentContentDriver.next(XMLDocumentFragmentScannerImpl.java:2784)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentScannerImpl.next(XMLDocumentScannerImpl.java:602)
	at com.sun.org.apache.xerces.internal.impl.XMLDocumentFragmentScannerImpl.scanDocument(XMLDocumentFragmentScannerImpl.java:505)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:842)
	at com.sun.org.apache.xerces.internal.parsers.XML11Configuration.parse(XML11Configuration.java:771)
	at com.sun.org.apache.xerces.internal.parsers.XMLParser.parse(XMLParser.java:141)
	at com.sun.org.apache.xerces.internal.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1213)
	at com.sun.org.apache.xerces.internal.jaxp.SAXParserImpl$JAXPSAXParser.parse(SAXParserImpl.java:643)
	at org.apache.tomcat.util.digester.Digester.parse(Digester.java:1449)
	at org.apache.tomcat.util.descriptor.web.WebXmlParser.parseWebXml(WebXmlParser.java:119)
	at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1118)
	at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:782)
	at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:307)
	at org.apache.catalina.util.LifecycleSupport.fireLifecycleEvent(LifecycleSupport.java:95)
	at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:90)
	at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5221)
	at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:145)
	at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:753)
	at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:729)
	at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:717)
	at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1730)
	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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:484)
	at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:433)
	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.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:300)
	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)
	at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)
	at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)
	at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)
	at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)
	at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1401)
	at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)
	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 sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:361)
	at sun.rmi.transport.Transport$1.run(Transport.java:200)
	at sun.rmi.transport.Transport$1.run(Transport.java:197)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.Transport.serviceCall(Transport.java:196)
	at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)
	at java.security.AccessController.doPrivileged(Native Method)
	at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)
	at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
	at java.lang.Thread.run(Thread.java:748)
Caused by: java.lang.IllegalArgumentException: taglib definition not consistent with specification version
	at org.apache.tomcat.util.descriptor.web.TaglibLocationRule.begin(WebRuleSet.java:1287)
	at org.apache.tomcat.util.digester.Digester.startElement(Digester.java:1181)
	... 62 more

该问题已被官方收录

maven

2

1

maven

class="cursor-pointer"> 详细描述

该问题已被官方收录

linux下mysql启动错误，mysqld服务无法启动

0

1

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图