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Introduction of Circuit Breaker Fuse, there is a good analogy in real life, that is, a safe box will be installed in the home circuit, when the current is too high, the fuse in the safe box will automatically break, to protect all kinds of electrical appliances and circuits in the home. Circuit Breaker in Hystrix also plays such a role. Hystrix ...

Unless it is a simple project, most of the Maven projects encountered in practical work are multi-module. Each project module can be developed independently, and some of them may use the functions of other modules. How to use Maven to build a multi-module project? Maven provides a way of inheritance and aggregation to build multi-module enginee ...

junit unit testing Black-box testing: No code is needed to give input values to see if the program can output the expected values. White-box testing: Some code is needed to focus on the specific execution process of the program. Junit Use: White Box Testing Steps: Define a test class (test case) Define test methods: They can run independe ...