java - ImageIO.read -> Error reading PNG image data

问题：就是类似这样的的一张png图片，我想用java的imageIO去读取，然而运行的时候却报异常了？ {代码...} 从异常情况上来看，图片本身可能被做过某些处理以致图片数据不完整了，然后imageio去读取的时候解析...

From [Javadiscussion group] 2017-04-17 12:03:31 0  1  1259

How should the database be designed for dynamic forms?

The requirement is to enter form information in the background management interface, stipulate which forms (ca...

From [Javadiscussion group] 2017-05-17 10:07:19 0  4  1258

java swing布局嵌套

小菜一枚，刚接触Java，想写个注册界面，但却遇到一个奇怪问题：代码如下： {代码...} 主要思路：一个主Jpanel，边界布局5个子Panel，东西南北中最后将主Panel加入Container中，但最后执行结果，F...

From [Javadiscussion group] 2017-04-17 17:54:45 0  2  1256

java - I deleted the svn code locally and re-imported it from the remote repository. It prompted me that it already exists.

(www.sf.gg) is China's leading developer technology community. We hope to provide a pure, high-quality technic...

From [Javadiscussion group] 2017-06-28 09:22:06 0  4  1255

java - springMVC配置的controller无法返回jsp文件

当启动完tomcat后，它首先展示的是index.jsp ，当我输入http://localhost:8080/Spring_no_2/时，出现 {代码...} 根据spring in action中的springMVC...

From [Javadiscussion group] 2017-04-18 10:54:02 0  4  1255

java-ee - JAVA的注解@Api和@ApiOperation的作用是什么，怎么跳转页面的

如图，在springMVC中，@requestmapping是起到了接受view层的url，再根据requestmapping的value来确认的那个方法的作用，那么@api和@ApiOperation的作用是什么呢？r...

From [Javadiscussion group] 2017-04-18 10:54:15 0  1  1254

java - Which expert has implemented the attendance and punch-in positioning function? Please give me some guidance

Which expert has implemented the attendance and punch-in positioning function? Please give me some advice? It ...

From [Javadiscussion group] 2017-05-27 17:40:46 0  1  1252

java - After idea creates a multi-modules project, tomcat fails to start

After my project directory is created, it is as shown in the figure below: But after starting tomcat, an error...

From [Javadiscussion group] 2017-06-30 09:52:52 0  2  1249

java - 用Navicat操作MySQL数据库如何返回上一步？

ctrl+z不行呀

From [Javadiscussion group] 2017-04-17 18:00:51 0  1  1247

Qiniu Cloud Storage-Excuse me! How to use JAVA to obtain Qiniu "space domain name" (default domain name for external links)

Please ask everyone! How to use JAVA to obtain Qiniu's "space domain name" (default domain name for ...

From [Javadiscussion group] 2017-07-05 10:02:19 0  2  1242

java - Distributed transaction processing solution

Do you need distributed transactions when deploying hibernate on multiple web servers to operate the database?...

From [Javadiscussion group] 2017-06-23 09:14:37 0  1  1242

Java操作Kafka执行不成功

使用kafka-clients操作kafka始终不成功，原因不清楚，下面贴出相关代码及配置，请懂得指点一下，谢谢! 环境及依赖 {代码...} JDK版本为1.8、Kafka版本为2.12-0.10.2.0，服务器使用C...

From [Javadiscussion group] 2017-04-18 10:55:11 0  2  1242

java完全限定名是什么

在学习java过程中遇到了下面的定义，能够帮忙解释吗？ 实例变量可以直接通过变量名访问。但在静态方法以及其他类中，就应该使用完全限定名：ObejectReference.VariableName。

From [Javadiscussion group] 2017-04-18 10:45:52 0  2  1242

java - HTML邮件有多出来的空白区域，如何处理？

用java写的发送HTML邮件，样式都已经把边距设置为0了，但是还是有大块的空白，这个要怎么去掉呢？

From [Javadiscussion group] 2017-04-18 10:52:17 0  1  1241

java - spring-data-mongo的mongoTemplate在spring的taskExecutor中异步执行异常

测试程序如下： {代码...} 执行结果： {代码...} 结果说明： 主线程执行时，mongoTemplate可以正常的查询出user的内容，但是在taskExecutor开启的子线程中，仅仅输出了当前的线程名，查询及...

From [Javadiscussion group] 2017-04-18 10:00:23 0  0  1241