包含标签：Java 的文章
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What is jar signing in Java?
What is a jar signature? Can we customize it? I mean, have your own signature Solution Jar signature is the process of…… -
How to automatically improve debugging in symfony2
I tried to debug using symfony2 before, and dealing with cache is a great pain Solution I'm on the app_ This code (bas…… -
Java – JDBC uses select for update to lock a row, which does not work
I have a select problem with MySQL For update, this is the query I tried to run: SELECT * FROM tableName WHERE HostNam…… -
Java – use the stream to find objects in the list
See the English answer > why filter () after flatmap () is "not completely" lazy in Java streams? 6 // returns [i,j…… -
Implementation of counting using group in Java 8
I am looking for the implementation of group by, and then filter it according to the count in the lambda expression se…… -
Java – hibernate subquery
I have a problem creating subqueries using hibernate Unfortunately, the subqueries class has almost no documentation a…… -
Java hash map thread visibility
I fully loaded a Java HashMap during initialization, but after initializing multiple threads, the HashMap will read th…… -
Java – why does the spring task scheduler wait for the last task to complete?
I have the following task scheduler settings: <bean id="Task" class="foo.bar.Task" /> <bean id="TaskSchedule…… -
Focus debugging in Java
Question: I'm trying to debug some focus related issues in my Java Swing application. Sometimes, some components seem …… -
Java: can integer = null be set?
If this parameter exists in the database, I have a function that returns the ID number If not, null Is this begging fo…… -
How do I unit test the javanica @ hystrixcommand annotation method?
I am using javanica and commenting on my hystrix command method, as follows: @HystrixCommand(groupKey="MY_GROUP",comma…… -
Delay multiple TCP connections from Java to the same machine
(see this question in serverfault) I have a java client using socket to open concurrent connections to the same machin…… -
Using Java IO seeking bytearrayinputstream
How to find (change location) bytearrayinputstream (Java. IO)? This is obvious, but I can't seem to find a way anywher…… -
Java – GWT and enumeration issues
I have an enumeration in the client of the GWT application. When I try to run it, I receive an exception related to se…… -
Java – hashcode, implementation and relationship with HashMap
So I asked another related question here: Java string hash function with avalanche effect, but now I have a different …… -
UTF-8 encodes Java strings into properties
I have a single UTF - 8 encoded string, which is a series of key - value pairs that need to be loaded into the propert…… -
How do I create a key pair in Java based on a password?
I want to allow Alice to create a public / private key pair so that Bob can send her confidential messages However, I …… -
Java – spring MVC passes a list of values from the JSP page to the controller
If I have HTML in < form >, like this: <input type="text" value="someValue1" name="myValues"/> <inp…… -
Java – friends list of friends who use twitter4j
How can I use twitter4j to get a friend list of friends or fans? Using getfriendsid (), I can only retrieve the list o…… -
Java – serialize POJOs using gson
I use gson to serialize POJOs – objects before and after changes The changed (called a) set by struts 2 can be easily …… -
How do I turn the monitor on and off in a Java application?
How do I turn the monitor on and off in a Java application? If you want to know why, this is a self-service terminal s…… -
Java – how to bind two parameters using play 2.0 routing
I'm learning play 2.0 (using the Java API) and want to have a double / float parameter (location coordinates), like ht…… -
Using multiple SSL client certificates with the same host in Java
In my java application, I need to use SSL to connect to the same host, but I use a different certificate every time Th…… -
Java – is there any way to create a basic array without initialization?
As we know, Java always initializes arrays at creation time That is, new int [1000000] always returns an array with al…… -
How can the Java – @ Autowired annotation be used for private fields?
See English answers > what is reflection and why is it useful? 21 Solution It applies to reflection Here you can fi…… -
Java – does any program recognize that it crashed last time?
What is the best way to let the (Java) program recognize the crash when it was last run, and display a message "it loo…… -
Java – is it acceptable to use the hamcrest matcher in non test code
I tried to find a clear answer to using hamcrest matchers in non - Test code I have done some research and have some c…… -
Java – what is the reason for the failure: “jarsigner: failed to try to rename {file} to {file}. Org” sign up with ants?
I received an error: When trying to sign a set of cans with ants in eclipse Ant build works well in this project and h…… -
Multithreading – prevents / removes threads from publishing messages to the main UI thread
My problem is that if a thread quickly publishes messages to the main UI thread, and if I update the UI at that time, …… -
Java n-dimensional array
I need to be able to have an n-dimensional field, where n is the input based on the constructor But I'm not even sure …… -
Java – spring MVC: Form: RadioButton of Boolean attribute
I just want to know how to use Boolean values in spring MVC forms I try to use this Code: My jsp: <form:radiobutton……