Detailed introduction of the technical principles of the NextInputs framework in the Java class library

The NextInpputs framework is a convenient and flexible input verification library, which is designed for Java class libraries.It provides a simple and powerful API, which aims to simplify the process of input verification and ensure the reliability and stability of the code.The technical principles of the NextInpputs framework are as follows: 1. Enter the verification device (InputValidator): The input verification device is the core concept of the NextInputs framework.It is responsible for defining and managing the rules for input verification.Each input verificationer can contain one or more verification rules for verifying the effectiveness of the input.Verification rules can be a predefined rule or a custom rule. 2. Pre -predetermined rules: The NextInputs framework provides a series of commonly used prepaid rules, such as non -empty, integer, floating point number, mailbox, mobile phone number, etc.These rules can be directly applied to the input verification device without additional customization. 3. Customized rules: In addition to predetermined rules, the NextInPuts framework also supports user -defined rules.Developers can create their own verification rules according to specific needs and apply it to the input verification device.Custom rules need to implement a specific interface and write verification logic according to the actual situation. 4. Enter the verification process: The input verification process includes the following steps: a. Create an input verification object object, and set the corresponding verification rules; b. Use the input verification device to verify the input that needs to be verified; c. Determine whether the input is effective based on the verification results. 5. Verification results: After input the verification device is verified, a verification result object will be returned.The verification results include the status of the verification, the error message of the verification, and the specific details of the verification failure.Developers can perform corresponding logical processing according to the verification results, such as output error messages or perform corresponding operations. Below is a simple Java code example, which shows how to use the NextInPuts framework for input verification: // Create an input verification object object InputValidator validator = new InputValidator(); // Add verification rules Validator.addrule (New Notemptyrule ("Please enter the user name"); Validator.addrule (New Emailrule ("Please enter valid mailbox address"); // Verify input InputValidationResult result = validator.validate(input); // Judgment verification results if (result.isValid()) { System.out.println ("Effective input"); } else { System.out.println ("Input invalid"); System.out.println ("Error message:" + Result.Geterror ()); System.out.println ("Error details:" + Result.GetDetail ()); } In the above examples, the input verification object is first created, and two verification rules are added through the AdDRule method.Then call the value method to verify the input and obtain the verification results object.Finally, determine whether the input is valid based on the verification results and the failed to verify the verification as needed. In short, the NextInputs framework provides a simple and powerful method to verify the input by entering the combination of the verification device and the verification rule.Its technical principles include the definition, predefined rules and custom rules of the input verification device, the application of the input verification process, and the processing of the verification results.By using the NextinPuts framework, developers can more conveniently input verification and ensure the quality and reliability of the code.