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在尝试使用腾讯云上传图片时，报错

第三方API调用图片上传

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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xml配置文件头部网址链接报错

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

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在Maven库中搜jar包会搜到很多个版本，但使用时选择不当就会报错。

maven

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

警告: Exception encountered during context initialization - cancelling refresh attempt:
 org.springframework.beans.factory.BeanCreationException: Error creating bean with name 'connectionFactory' defined
 in class path resource [applicationContext-redis.xml]: Bean instantiation via constructor failed; 
 nested exception is org.springframework.beans.BeanInstantiationException: Failed to instantiate 
 [org.springframework.data.redis.connection.jedis.JedisConnectionFactory]: Constructor threw exception;
 nested exception is java.lang.NoSuchMethodError: 
    org.springframework.util.Assert.isTrue(ZLjava/util/function/Supplier;)V
Exception in thread "main" org.springframework.beans.factory.BeanCreationException: 
Error creating bean with name 'connectionFactory' defined in class path resource [applicationContext-redis.xml]:
 Bean instantiation via constructor failed; nested exception is org.springframework.beans.BeanInstantiationException:
 Failed to instantiate [org.springframework.data.redis.connection.jedis.JedisConnectionFactory]: 
 Constructor threw exception; nested exception is java.lang.NoSuchMethodError: 
 org.springframework.util.Assert.isTrue(ZLjava/util/function/Supplier;)V

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rmi后cookie的反序列化UID问题

序列化

class="cursor-pointer"> 详细描述

class="cursor-pointer"> 错误截图

class="cursor-pointer"> 源码

@Override
    public Cookie getCookie(String userName) throws Exception {
        User user = studentService.findNameUser(userName);
        Long id = user.getUserId();
        // 使用用户ID+系统当前时间生成唯一token, 格式为键值对
        String token = id + "|" + id + "|" + System.currentTimeMillis();
        logger.info("生成的token是:"+token);
        // 用DES加密key 必须8位
        byte[] bytes = DESUtil.encrypt(token,skey);
        logger.info("加密后的token: " + DESUtil.toHexString(bytes).toUpperCase());
        logger.info("加密后的Base64 token: " + Base64.encodeBase64String(bytes));
        //org.apache.commons.codec.binary.Base64;依赖包
        Cookie cookie = new Cookie("token",Base64.encodeBase64String(bytes));
        // 设置 Cookie 过期时间 单位为秒
        cookie.setMaxAge(7000);
        // 设置 Cookie 有效路径
        cookie.setPath("/");
        logger.info("新生成的Cookie-效时间-值: " + cookie.getName() + "-->" + cookie.getMaxAge() + "-->" + cookie.getValue() + cookie.getPath());
        return cookie;
    }

logger.info("登录成功，生成cookie");
            Cookie cookie = studentRmi.getCookie(userName);
            response.addCookie(cookie);
            return "redirect:student";

接口文档的字段命名有什么要求呢，简洁好还是长点有区分度？

接口文档

class="cursor-pointer"> 详细描述

使用唯一索引和不使用时插入查找基本无差别

数据库

class="cursor-pointer"> 详细描述

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Resin 项目启动报@WebServlet问题（JettyHttpHand…）

resin

class="cursor-pointer"> 详细描述

具体ERROR：

500 Servlet Exception

Annotation @WebServlet at 'org.springframework.http.server.reactive.JettyHttpHandlerAdapter'
must specify either value or urlPatterns

发布的时候提示的问题，提示需要配置url，但是项目里没有使用这个，而且定位不到具体位置，log里也是同样的错误：

jvm-app log：

[18-05-16 09:23:04.197] {resin-59} WebApp[production/webapp/default/ROOT,STARTING] Initializing Spring root WebApplicationContext
2018-05-16 09:23:04 [INFO]-[org.springframework.web.context.ContextLoader] Root WebApplicationContext: initialization started
  2018-05-16 09:23:04 [INFO]-[org.springframework.web.context.support.XmlWebApplicationContext] Refreshing Root WebApplicationContext: startup date [Wed May 16 09:23:04 CST 2018]; root of context hierarchy
  2018-05-16 09:23:04 [INFO]-[org.springframework.beans.factory.xml.XmlBeanDefinitionReader] Loading XML bean definitions from class path resource [springmybatis.xml]
  2018-05-16 09:23:04 [INFO]-[org.springframework.beans.factory.annotation.AutowiredAnnotationBeanPostProcessor] JSR-330 'javax.inject.Inject' annotation found and supported for autowiring
  2018-05-16 09:23:04 [INFO]-[com.mchange.v2.log.MLog] MLog clients using log4j logging.
  2018-05-16 09:23:04 [INFO]-[com.mchange.v2.c3p0.C3P0Registry] Initializing c3p0-0.9.5.2 [built 08-December-2015 22:06:04 -0800; debug? true; trace: 10]
  Logging initialized using 'class org.apache.ibatis.logging.stdout.StdOutImpl' adapter.
2018-05-16 09:23:05 [INFO]-[org.springframework.web.context.ContextLoader] Root WebApplicationContext: initialization completed in 1495 ms
  [18-05-16 09:23:05.700] {resin-59} WebApp[production/webapp/default/ROOT] fail
[18-05-16 09:23:05.700] {resin-79} Annotation @WebServlet at 'org.springframework.http.server.reactive.JettyHttpHandlerAdapter' must specify either value or urlPatterns

class="cursor-pointer"> 错误截图