Image upload - Problems when Android uploads images to the Java server

When I upload pictures on the Android side, if the URL uses an intranet IP, there is no problem when uploading...

From [Javadiscussion group] 2017-06-12 09:19:48 0  1  725

javascript - I have a question about the data size for REST transmission at the front and back ends?

Just like Zhihu/quora and other websites, when reading user answers or articles, you can use read more or moda...

From [Javadiscussion group] 2017-06-12 09:19:43 0  2  825

javascript - How to design the return code of the project so that different return codes represent different meanings?

This is the return code of the WeChat public platform interface. When working on a project, you need the API i...

From [Javadiscussion group] 2017-06-12 09:19:41 0  4  799

mysql - Ask a question about database caching in Java

Now I am responsible for a personal writing platform in a school library. The basic business model has been co...

From [Javadiscussion group] 2017-06-12 09:19:37 0  1  726

How constants are defined in java.

{Code...} What are the characteristics of these two ways of defining constants? Which method is more recommend...

From [Javadiscussion group] 2017-06-12 09:19:32 0  2  980

javascript - Please help with uploading base64-bit string image data to the java background

Well, the company project has a requirement to provide users with the function of manually adding mosaics befo...

From [Javadiscussion group] 2017-06-12 09:19:31 0  3  899

java - Cannot resolve symbol 'HttpServletRequest'

This project was taken from the Internet https://github.com/Eliteams/q... However, when compiling IDEA, an err...

From [Javadiscussion group] 2017-06-12 09:19:29 0  4  1799

java - How to create a shortcut after decompressing a software zip package?

The file can be opened by directly clicking on the exe file in the zip package, but the file cannot be opened ...

From [Javadiscussion group] 2017-06-12 09:19:24 0  1  1003

Why pass a subclass object of Runnable interface to Thread's constructor?

In addition, compared with thread, apart from inheritance, how is the independence of code and data reflected ...

From [Javadiscussion group] 2017-06-12 09:19:22 0  3  1594

php - I have a question about type conversion. When converting float type to int, I thought there might be a problem, but the result was not?

For example, if I convert the float type 2.0000000000 into an int, the underlying storage should be 1.99999999...

From [Javadiscussion group] 2017-06-12 09:19:20 0  6  802

java - There is a very strange problem when using <%= %> to obtain data on a .jsp page

When jumping to a jsp page and using &lt;%=%&gt; to get data into the form, the console reports an err...

From [Javadiscussion group] 2017-06-12 09:19:19 0  1  1260

java - session synchronization problem in dubbo

The scenario is as follows. The service module and the web module in dubbo are two services. If you want to ge...

From [Javadiscussion group] 2017-06-12 09:19:17 0  3  794

Web crawler - How to use java to crawl information and make a ranking system?

I happened to have an interesting project to do while learning java web. Our school requires a credit card for...

From [Javadiscussion group] 2017-06-12 09:19:16 0  4  675

java - The application crashes after using the add method of the FragmentTransaction object in Android

I want to set and replace fragments in the activity. In the setDefaultFragment() method, use transaction.add(R...

From [Javadiscussion group] 2017-06-12 09:19:13 0  1  969

java - How does SpringMVC have such things as middleware?

{Code...} I wrote two copies of the code to get the path. It feels so bloated. How can I write only one copy a...

From [Javadiscussion group] 2017-06-12 09:19:12 0  3  684