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该问题已被官方收录

tiles无法实现，页面报错

1

tiles

class="cursor-pointer"> 详细描述

该问题已被官方收录

找不到log4j的配置文件路径

1

class="cursor-pointer"> 详细描述

使用PropertyConfigurator.configure来加载配置文件时，无法找到log4j.properties的路径。

在进行log4j demo，部分代码如下：

public class TestLog4j {
    // 获取日志对象
    static Logger logger = Logger.getLogger(TestLog4j.class);

public static void main(String[] args) throws InterruptedException {
        // 加载配置文件
        PropertyConfigurator.configure("log4j.properties");

for (int i = 0;  i < 100; i++) {
            logger.trace("跟踪信息");
            logger.debug("调试信息");
            logger.info("输出信息");

Thread.sleep(100);

logger.warn("警告信息");
            logger.error("错误信息");
            logger.fatal("致命信息");
        }
    }
}
可以运行，但同时会遇到报错如下：

log4j:ERROR Could not read configuration file [log4j.properties].

java.io.FileNotFoundException: log4j.properties (No such file or directory)

at java.io.FileInputStream.open0(Native Method)

at java.io.FileInputStream.open(FileInputStream.java:195)

at java.io.FileInputStream.(FileInputStream.java:138)

at java.io.FileInputStream.(FileInputStream.java:93)

at org.apache.log4j.PropertyConfigurator.doConfigure(PropertyConfigurator.java:372)

at org.apache.log4j.PropertyConfigurator.configure(PropertyConfigurator.java:403)

at log4j.TestLog4j.main(TestLog4j.java:39)

log4j:ERROR Ignoring configuration file [log4j.properties].

DEBUG [main] (TestLog4j.java:43) - 调试信息

INFO [main] (TestLog4j.java:44) - 输出信息

WARN [main] (TestLog4j.java:48) - 警告信息

ERROR [main] (TestLog4j.java:49) - 错误信息

FATAL [main] (TestLog4j.java:50) - 致命信息

DEBUG [main] (TestLog4j.java:43) - 调试信息

找不到log4j的配置文件。

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

PropertyConfigurator.configure("log4j.properties");

该问题已被官方收录

生成war包，提示找不到符号，符号类：cookie

0

1

会话管理

class="cursor-pointer"> 详细描述

下面是 POM 的配置信息：
<?xml version="1.0" encoding="UTF-8"?>

<groupId>com.jnshu</groupId>
  <artifactId>task05</artifactId>
  <version>1.0-SNAPSHOT</version>
  <packaging>war</packaging>

<name>task04 Maven Webapp</name>
  
  <url>http://www.example.com</url>

<properties>
    
    <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
    <java.version>1.8</java.version>
    
    <spring.version>4.3.12.RELEASE</spring.version>
    
    <slf4j.version>1.7.7</slf4j.version>
    <log4j.version>1.2.17</log4j.version>
  </properties>
  <dependencies>
    
    <dependency>
      <groupId>com.sun.jersey</groupId>
      <artifactId>jersey-client</artifactId>
      <version>1.19.4</version>
    </dependency>

<dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>javax.servlet-api</artifactId>
      <version>3.1.0</version>
      <scope>provided</scope>
    </dependency>

<dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-simple</artifactId>
      <version>1.6.2</version>
    </dependency>
    
    <dependency>
      <groupId>com.googlecode.xmemcached</groupId>
      <artifactId>xmemcached</artifactId>
      <version>2.4.3</version>
    </dependency>

<dependency>
      <groupId>commons-pool</groupId>
      <artifactId>commons-pool</artifactId>
      <version>1.5.6</version>
    </dependency>
    <dependency>
      <groupId>net.spy</groupId>

<artifactId>spymemcached</artifactId>
      <version>2.11.6</version>
    </dependency>

<dependency>
      <groupId>commons-codec</groupId>
      <artifactId>commons-codec</artifactId>
      <version>1.10</version>
    </dependency>

<dependency>
      <groupId>javax.servlet.jsp</groupId>
      <artifactId>javax.servlet.jsp-api</artifactId>
      <version>2.3.1</version>
      <scope>provided</scope>
    </dependency>

<dependency>
      <groupId>json-taglib</groupId>
      <artifactId>json-taglib</artifactId>
      <version>0.4.1</version>
    </dependency>
    
    <dependency>
      <groupId>org.aopalliance</groupId>
      <artifactId>com.springsource.org.aopalliance</artifactId>
      <version>1.0.0</version>
    </dependency>
    <dependency>
      <groupId>cglib</groupId>
      <artifactId>cglib</artifactId>
      <version>3.2.4</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjrt</artifactId>
      <version>1.8.13</version>
    </dependency>
    <dependency>
      <groupId>org.aspectj</groupId>
      <artifactId>aspectjweaver</artifactId>
      <version>1.8.13</version>
    </dependency>

<dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-annotations</artifactId>
      <version>2.8.10</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-core</artifactId>
      <version>2.8.10</version>
    </dependency>
    <dependency>
      <groupId>com.fasterxml.jackson.core</groupId>
      <artifactId>jackson-databind</artifactId>
      <version>2.8.10</version>
      <exclusions>
        <exclusion>
          <artifactId>jackson-annotations</artifactId>
          <groupId>com.fasterxml.jackson.core</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    
    <dependency>
      <groupId>javax.servlet</groupId>
      <artifactId>jstl</artifactId>
      <version>1.2</version>
    </dependency>

<dependency>
      <groupId>junit</groupId>
      <artifactId>junit</artifactId>
      <version>4.12</version>
      <scope>test</scope>
    </dependency>
    
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis-spring</artifactId>
      <version>1.3.0</version>
    </dependency>
    <dependency>
      <groupId>org.mybatis</groupId>
      <artifactId>mybatis</artifactId>
      <version>3.4.1</version>
    </dependency>
    
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aop</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-aspects</artifactId>
      <version>${spring.version}</version>
      <exclusions>
        <exclusion>
          <artifactId>aspectjweaver</artifactId>
          <groupId>org.aspectj</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-beans</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-context</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-core</artifactId>
      <version>${spring.version}</version>
      <exclusions>
        <exclusion>
          <artifactId>commons-logging</artifactId>
          <groupId>commons-logging</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-expression</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-jdbc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-test</artifactId>
      <version>${spring.version}</version>
      <scope>test</scope>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-tx</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-web</artifactId>
      <version>${spring.version}</version>
    </dependency>
    <dependency>
      <groupId>org.springframework</groupId>
      <artifactId>spring-webmvc</artifactId>
      <version>${spring.version}</version>
    </dependency>
    
    <dependency>
      <groupId>mysql</groupId>
      <artifactId>mysql-connector-java</artifactId>
      <version>5.1.38</version>
    </dependency>
    
    
    <dependency>
      <groupId>commons-logging</groupId>
      <artifactId>commons-logging</artifactId>
      <version>1.1.1</version>
    </dependency>
    <dependency>
      <groupId>log4j</groupId>
      <artifactId>log4j</artifactId>
      <version>${log4j.version}</version>
    </dependency>
    
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>fastjson</artifactId>
      <version>1.1.41</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-api</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    <dependency>
      <groupId>org.slf4j</groupId>
      <artifactId>slf4j-log4j12</artifactId>
      <version>${slf4j.version}</version>
    </dependency>
    
    
    
    <dependency>
      <groupId>c3p0</groupId>
      <artifactId>c3p0</artifactId>
      <version>0.9.1.2</version>
    </dependency>
    
    <dependency>
      <groupId>com.alibaba</groupId>
      <artifactId>druid</artifactId>
      <version>1.1.5</version>
    </dependency>
    
    <dependency>
      <groupId>com.github.pagehelper</groupId>
      <artifactId>pagehelper</artifactId>
      <version>5.1.2</version>
    </dependency>
    <dependency>
      <groupId>com.github.jsqlparser</groupId>
      <artifactId>jsqlparser</artifactId>
      <version>1.0</version>
    </dependency>
    <dependency>
      <groupId>org.junit.jupiter</groupId>
      <artifactId>junit-jupiter-api</artifactId>
      <version>RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.testng</groupId>
      <artifactId>testng</artifactId>
      <version>RELEASE</version>
    </dependency>
    <dependency>
      <groupId>org.apache.tiles</groupId>
      <artifactId>tiles-api</artifactId>
      <version>3.0.8</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.apache.tiles</groupId>
      <artifactId>tiles-core</artifactId>
      <version>3.0.8</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.apache.tiles</groupId>
      <artifactId>tiles-jsp</artifactId>
      <version>3.0.8</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.apache.tiles</groupId>
      <artifactId>tiles-servlet</artifactId>
      <version>3.0.8</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    <dependency>
      <groupId>org.apache.tiles</groupId>
      <artifactId>tiles-template</artifactId>
      <version>3.0.8</version>
      <exclusions>
        <exclusion>
          <artifactId>slf4j-api</artifactId>
          <groupId>org.slf4j</groupId>
        </exclusion>
      </exclusions>
    </dependency>
    
    <dependency>
      <groupId>taglibs</groupId>
      <artifactId>standard</artifactId>
      <version>1.1.2</version>
    </dependency>
    
    <dependency>
      <groupId>com.caucho</groupId>
      <artifactId>hessian</artifactId>
      <version>4.0.51</version>
    </dependency>
    
    <dependency>
      <groupId>org.codehaus.woodstox</groupId>
      <artifactId>wstx-asl</artifactId>
      <version>4.0.6</version>
    </dependency>
    
    <dependency>
      <groupId>javax.xml.stream</groupId>
      <artifactId>stax-api</artifactId>
      <version>1.0-2</version>
    </dependency>
    
    <dependency>
      <groupId>com.whalin</groupId>
      <artifactId>Memcached-Java-Client</artifactId>
      <version>3.0.2</version>
    </dependency>

</dependencies>

<build>
    <resources>
      <resource>
        <directory>src/main/java</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
      <resource>
        <directory>src/main/resources</directory>
        <includes>
          <include>**/*.properties</include>
          <include>**/*.xml</include>
        </includes>
        <filtering>false</filtering>
      </resource>
    </resources>
    
    <plugins>
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <configuration>
          <source>8</source>
          <target>8</target>
        </configuration>
      </plugin>
    </plugins>
    <pluginManagement>
      <plugins>
        <plugin>
          <artifactId>maven-clean-plugin</artifactId>
          <version>3.0.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-resources-plugin</artifactId>
          <version>3.0.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-compiler-plugin</artifactId>
          <version>3.7.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-surefire-plugin</artifactId>
          <version>2.20.1</version>
        </plugin>
        <plugin>
          <artifactId>maven-war-plugin</artifactId>
          <version>3.2.0</version>
        </plugin>
        <plugin>
          <artifactId>maven-install-plugin</artifactId>
          <version>2.5.2</version>
        </plugin>
        <plugin>
          <artifactId>maven-deploy-plugin</artifactId>
          <version>2.8.2</version>
        </plugin>
      </plugins>
    </pluginManagement>

</build>

</project>

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

package task05.controller;

import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import task05.pojo.UserLogin;
import task05.services.UserLoginServices;
import task05.util.MD5.MD5Util;
import task05.util.des.CharacterUtils;
import task05.util.des.DesUtil;

import javax.servlet.http.Cookie;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;
import java.nio.charset.Charset;


@Controller
public class UserLoginController {
    private static final org.slf4j.Logger logger = LoggerFactory.getLogger(UserLoginController.class);

    @Autowired
    public UserLoginServices userLoginServices;
    private UserLogin userLogin;
    private static final Charset CHARSET = Charset.forName("gb2312");


    //    实现跳转至登录界
    @RequestMapping(value = "/login", method = RequestMethod.GET)
    public String login() {
        logger.info("------------------ 跳转至登录界面 ----------------");
        return "/login";
    }

    //实现跳转至注册界面
    @RequestMapping(value = "/register", method = RequestMethod.GET)
    public String register1() {
        logger.info("------------------ 跳转至注册界面 ----------------");
        return "register";
    }


    @RequestMapping(value = "/toregister", method = RequestMethod.POST)
    public String register(UserLogin userLogin, Model model) {

//        生成一个空文密码，用于检测密码是否为空
        UserLogin u = new UserLogin();
//        获取前端传回来的 name
        String name = userLogin.getName();
        logger.info("------------------ 打印从前端收集的信息----------------");
        logger.info(userLogin.toString());
        //        根据 name 来查询数据库中用户的整体信息
        UserLogin userLoginDateBase = userLoginServices.queryByName(name);
        if (null != userLoginDateBase) {
            model.addAttribute("后端通知", "用户已存在");
            return "redirect:/toregister";
        } else if (!("".equals(userLogin.getPassword()))) {
//            创建一个随机的 salt
            String salt = CharacterUtils.getRandomString(8);
//            加密成密文保存到 password
            String password = MD5Util.MD5(userLogin.getPassword() + salt);
//            将密文保存在 前端返回的对象中 userLogin
            userLogin.setPassword(password);
//            将随机盐保存在 前端返回的对象中 userLogin
            userLogin.setSalt(salt);
            logger.info("userLogin:" + userLogin );
//            将经过修改后前端返回的对象 userLogin 写入数据库中
            userLoginServices.register(userLogin);
//            向前端返回通知
            model.addAttribute("后端通知", "注册成功，请登录");
            return "redirect:/login";
        } else {
            model.addAttribute("后端通知", "密码不能为空");
            return "redirect:/register";
        }
    }


    @RequestMapping(value = "tologin", method = RequestMethod.POST)
    public String tologinbase(Model model, UserLogin userLogin,HttpServletResponse response,
                              HttpServletRequest request) {
        logger.info("userLogin:" + userLogin.toString() );
//        获取前端返回的登录 name password
        String name = userLogin.getName();
        String password = userLogin.getPassword();
       logger.info("name:" + name + "-----password:" + password);
//        根据前端返回的 name 来获取数据库中的数据
        UserLogin userLoginDatabase = userLoginServices.queryByName(name);
        logger.info("数据库中的额数据：" + userLoginDatabase.toString());
//        生成一个 ID + time 的字符串，并把它传值至 token
        String key = CharacterUtils.getRandomString(8);
        String id = String.valueOf(userLoginDatabase.getId());
        String tokenBase = id + "," + System.currentTimeMillis();
        String token = DesUtil.encrypt(tokenBase, CHARSET, key);


//        来对前端返回的密码 结合数据库中的 salt 二次加密，在比较两次加密的密文是否相等
        if (userLoginDatabase != null) {
            if (MD5Util.MD5(password +
                    userLoginDatabase.getSalt()).equals(userLoginDatabase.getPassword())) {

//                创建 名为  tokenCookie 的cookie，然后将 token 内容写入 cookie 中
                Cookie tokenCookie = new Cookie("name", token);
                Cookie tokenCookieName = new Cookie("userName", name);

//                设定 cookie 的有效时长
                tokenCookie.setMaxAge(60 * 60 * 24);
                tokenCookieName.setMaxAge(60 * 60 * 24);
                response.addCookie(tokenCookie);
                response.addCookie(tokenCookieName);

//                生成 session
//                getSession()相当于getSession(false)，getSession(true)则不管当前是否存在Session都创建一个
                HttpSession session = request.getSession(false);
                session.setAttribute("userName",name);
                session.setAttribute("password",password);
                session.setMaxInactiveInterval(60 * 60 * 24);

//                将 token 加密用的 salt 保存至数据库中
                userLoginServices.updateDes(key, userLoginDatabase.getId());
                System.out.println("登录信息正确");

                return "redirect:/u/occupation";//一个登陆成功的页面
            } else {
                model.addAttribute("返回通知", "账户或密码不对");
                return "redirect:/login";
            }
        } else {
            model.addAttribute("返回通知", "用户不存在");
            return "redirect:/login";
        }
    }
}

该问题已被官方收录

本地客户端远程测试服务端连接

0

1

springRMI

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

客户端配置文件连接：
<bean id="serviceProxy" class="org.springframework.remoting.rmi.RmiProxyFactoryBean">
   <property name="serviceUrl" value="rmi://39.105.66.68:1199/StudentService"/>
   <property name="serviceInterface" value="com.jns.service.StudentService"/>
</bean>

该问题已被官方收录

lniux命令报错

1

linux命令

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图