大约有 41,300 项符合查询结果（耗时：0.1014秒） [XML]
What is the difference between persist() and merge() in JPA and Hibernate?
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axtavtaxtavt
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Tomcat startup logs - SEVERE: Error filterStart how to get a stack trace?
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138
Check the localhost_yyyy_mm_dd.log OR localhost.yyyy-mm-dd.log logs that Tomcat creates, these ...
How to change MySQL data directory?
...swered Apr 18 '12 at 12:22
user1341296user1341296
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Facebook development in localhost
...Set the Site URL field (NOT the App Domains field) to http://www.localhost:3000 (this address is for Ruby on Rails, change as needed)
In your application initializer, put in code to detect the environment
Sample Rails 3 code
if Rails.env == 'development' || Rails.env == 'test'
Rails.a...
How to disable python warnings
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answered Jan 22 '13 at 16:28
Pavel AnossovPavel Anossov
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When should I use malloc in C and when don't I?
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133
char *some_memory = "Hello World";
is creating a pointer to a string constant. That means the...
How to list the files inside a JAR file?
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93
CodeSource src = MyClass.class.getProtectionDomain().getCodeSource();
if (src != null) {
URL j...
In Clojure 1.3, How to read and write a file
...e to know the "recommended" way of reading and writing a file in clojure 1.3 .
6 Answers
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When to use symbols instead of strings in Ruby?
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answered May 18 '13 at 5:38
fotanusfotanus
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Where to define custom error types in Ruby and/or Rails?
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edited Sep 12 '11 at 9:37
Erik B
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answer...