Struts2 Data Calibration method

Method:

1. Verify in the action class in the Execute () method.

Pros: The action class does not have to inherit classes from the framework.

Cons: (1) when there are multiple checksums, the code repeats, violating high cohesion and low coupling.

2. Rewrite the Validate () method in the framework Actionsupport class.

Pros: Contains the This.addfielderror () method, and once invoked, the action ends.

Cons: (1) need to inherit the Actionsupport class (intrusive) in the framework.

(2) Disadvantage of Method 1 (1).

3. Use multiple ValidateXxx () methods, XXX is the method name, and the first letter is capitalized.

Advantages: Separate multiple checks, clear structure.

Disadvantages: (1) Method 2 of the (1) disadvantage.

(2) cannot be reused.

4. Use the STRUTS2 built-in checker.

Pros: Just call, simple, fast.

Cons: (1) You need to use the specified jar package.

(2) More invasive.

Struts2 Data Calibration method