NextInputs Framework Enterprise Application Case Solution

NextInputs Framework Enterprise Application Case Solution The NextInpputs framework is a lightweight open source library used to verify the user input, which can help developers quickly and accurately verify form data.Below will introduce the application cases of the NextInputs framework in enterprise -level applications, and provide the corresponding Java code example. Case background: Suppose we are developing an e -commerce website that contains user registration functions.In the registration page, users need to provide user name, password and email address.We need to ensure that these input items meet specific verification rules to ensure the effectiveness and security of the data. solution: We can use the NextInPuts framework to verify the user's input data.First of all, we need to introduce the dependencies of the NextInputs library in the project.The following dependencies can be introduced in the construction document of the project: dependencies { implementation 'com.github.carlosmuvi:NextInputs:1.4.0' } Next, we use the NextInputs framework to create a validator Validator to verify the input data.Below is an example code that creates validator: import com.github.carlosmuvi.NextInputs; import com.github.carlosmuvi.ValidationException; public class UserValidator { private final NextInputs inputs; public UserValidator() { inputs = new NextInputs(); } public void validateUsername(String username) { inputs.add (username, "username") .required() .notEmpty() .maxLength(20) .erRormessage ("The user name cannot be empty, and the length cannot exceed 20 characters"); } public void validatePassword(String password) { Inputs.add (password, "password") .required() .notEmpty() .minLength(6) .maxLength(16) .containsDigit() .containsUppercase() .containsSpecial() .erRormessage ("The password cannot be empty, and must include numbers, uppercase letters and special characters, between 6 and 16 characters"); } public void validateEmail(String email) { Inputs.add (email, "email address") .required() .notEmpty() .validEmail() .erRermessage ("The email address cannot be empty, and it must be effective email format"); } public void validateInputs() throws ValidationException { inputs.check(); } } In the above code, we define an UserValidator class that contains validateUsername, ValidatePassword and ValidateMail and other verification methods.For each input item, we use the chain call method of NextInputs to add verification rules. In the verification method, we use different verification methods to verify the input data.For example, for the username, we use the required () method to indicate that the item is required. The NoteMPTY () method indicates that it cannot be empty.If the verification fails, we can set the corresponding error message using the errorMessage () method. Finally, we call inputs.check () in the validateInputs () method to perform verification operations.If there is any verification error, it will throw out ValidationException. Next, we can use the UserValidator class in the logic of user registration to verify the data entered by the user.The following is a sample code fragment: public void registerUser(String username, String password, String email) { UserValidator validator = new UserValidator(); try { validator.validateUsername(username); validator.validatePassword(password); validator.validateEmail(email); // Perform user registration logic here // ... } catch (ValidationException e) { String errorMessage = e.getErrorMessage(); // Process verification error // ... } } In the above code, we first instantiated the UserValidator class and used it to verify the user name, password and email address.If there are any verification errors, it will be thrown out of ValidationException. You can get an error message in the CATCH block for processing, such as prompting the user's error information or performing corresponding error processing operations. By using the NextInPuts framework, we can simplify the process of input verification by the user to improve the readability and maintenance of the code.In addition, NextINPUTS also provides other rich verification methods and functions, and developers can expand and customize according to actual needs. Summarize: This article introduces the application case of the NextInputs framework in enterprise -level applications and provides the corresponding Java code example.By using the NextinPuts framework, developers can quickly and accurately verify the user's input data to ensure the effectiveness and security of the data.It is hoped that this article can provide some help to the reader's understanding and using the NextinPuts framework.