#used

andriod httpclient connection refused 解决方法

1.AndriodManifest.xml加入<uses-permissionandroid:name="android.permission.INTERNET"/>大小写敏感 2调用HttpClient在县城中调用,不能用主界面线程。...

爬取数据时解析url时一直报错Caused by: java.net.URISyntaxException: Illegal character in query at index 823替换了所有空格和特殊字符还是无效

近日在用HttpClient访问抓取汇率时,为了省力,直接采用Stringurl="http://api.liqwei.com/currency/?exchange=usd|cny&count=1";HttpClientclient=newDefaultHttpClient();HttpGethttpget=n...

将爬取的网页数据保存到数据库时报错不能提交JPA,Caused by: java.sql.SQLException: Incorrect string value: 'xF0x9Fx98xB6 xE2...' for column 'content' at row 1

错误原因:我们可以看到错误提示中的字符0xF00x9F0x980x84,这对应UTF-8编码格式中的4字节编码(UTF-8编码规范)。正常的汉字一般不会超过3个字节,为什么为出现4个字节呢?实际上是它对应的是智能手机输入法中的表情。那为什么会报错呢?因为mysql中的utf-8并不是真正意义上的utf-8,它只能存储1...

由于外键的存在引发的一个mysql问题 Cannot change column 'id': used in a foreign key constraint

Duplicateentry'0'forkey'PRIMARY'一查,发现表没有设置自增长。尝试增加修改表,添加自增长。ALTERTABLEsh_incentive_itemMODIFYidSMALLINTUNSIGNEDAUTO_INCREMENT;报错[SQL]ALTERTABLEsh_incentive_item...

iOS报错 -pie can only be used when targeting iOS 4.2 or later

近期,使用师兄的project时。突然报错之前没发现这个错误。信息例如以下:ld:-piecanonlybeusedwhentargetingiOS4.2orlaterclang:error:linkercommandfailedwithexitcode1(use-vtoseeinvocation)详细信息: ...
代码星球 ·2020-04-06

Caused by: java.io.FileNotFoundException: rmi_keystore.jks (没有那个文件或目录)

 解决方法:修改jmeter.properites:server.rmi.ssl.disable=true,关闭ssl功能  参考:https://blog.csdn.net/nielinqi520/article/details/79855418...

Caused by: java.lang.ClassNotFoundException: org.springframework.scheduling.quartz.CronTriggerBean

在ssh框架中配置quartz定时器出现:Causedby:java.lang.ClassNotFoundException:org.springframework.scheduling.quartz.CronTriggerBean  atjava.net.URLClassLoader$1.run(...

Caused by: Unable to load jar:file:WEB-INF/lib/struts2-spring-plugin-2.5.10.1.jar!/struts-plugin.xml

struts2-spring-plugin和struts-core的版本不一致,统一一下版本就ok了 ...
代码星球 ·2020-04-06

[转]android 127.0.0.1/localhost connection refused 问题

调试中通过androidsimulator模拟器链接localhost或者127.0.0.1,因为我在电脑上面建立了apache,我的代码大概就是URLurl=newURL(urlString);   URLConnectionurlconn=url.openConnection();但是...

Caused by: java.lang.IllegalArgumentException: Can not set int field reyo.sdk.enity.xxx.xxx to java.lang.Long

由于数据库字段设置不正确引起的,不能选中alter <table> modify <column> int unsigned;关于unsigned int类型,可以看看它的帮助:INT[(M)] [UNSIGNED] ...

Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: connect timed out

问题:java连接不上redis。异常信息:Caused by: redis.clients.jedis.exceptions.JedisConnectionException: java.net.SocketTimeoutException: connect time...

FreeMarker与Spring MVC 4结合错误:Caused by: java.lang.NoClassDefFoundError: org/springframework/ui/freemarker/FreeMarkerConfiguration

添加spring-context-support的依赖到POM:<!--spring-context-support--><!--https://mvnrepository.com/artifact/org.springframework/spring-context-support--><...

Ubuntu 16.04错误:The update information is outdated this may be caused by network...的问题解决

说明:这个问题没有最终的解决方案,只有不断的尝试。错误:Theupdateinformationisoutdatedthismaybecausedbynetworkproblemsorarepositorythatisnolongeravailablepleaseupdatemanuallybyselecting'sh...

docker登录报错Error response from daemon: Get https://192.168.30.10/v1/users/: dial tcp 192.168.30.10:443: connect: connection refused

背景描述: 登录docker报错:[root@localhostsysconfig]#dockerlogin192.168.30.10Username(newcs06):newcs06Password:Errorresponsefromdaemon:Gethttps://192.168.30.10/v1/us...

小程序获取openid 出现null,{"errcode":40163,"errmsg":"code been used, hints: [ req_id: WNUzlA0105th41 ]"}

//根据微信提供的接口,请求得到openid和session_idpublicclassUserInfoUtils{  privateStringgetKeyURL="https://api.weixin.qq.com/sns/jscode2session?appid=%s&secret=%s&...
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