英文:
Can we add validation to the request body based on the request Parameter
问题
我有一个REST端点，它接收请求体中的对象和请求参数。当传递请求参数时，我需要验证对象的所有属性，如果没有，则参数采用分配的默认值，只需要验证2个属性。两种情况的路径都需要相同。如何实现这一点？
目前，我对对象进行模式、长度和可能值的检查，借助注释进行验证。
----- 更新类 -------
@ValidateParent(parent = "parent", child = "child")public class anClass {@NotNull(groups = {FrstValidator.class, SndValidator.class})@Pattern(regexp = "^[a-zA-Z]{3}$",groups = {FrstValidator.class, SndValidator.class})String str1;@NotNull(groups = {FrstValidator.class, SndValidator.class})@Pattern(regexp = "^[a-zA-Z]{3}$",groups = {FrstValidator.class, SndValidator.class})String str2;@Pattern(regexp = "^[a-zA-Z]{10}$",groups = SndValidator.class)String child;@Pattern(regexp = "^[a-zA-Z]{10}$",groups = SndValidator.class)String parent;@Pattern(regexp = "^[a-zA-Z]{10}$",groups = SndValidator.class)String str3;}
ValidateParent会检查在请求体中传递child时是否也传递了parent。
英文:
I have an REST endpoint, which takes an object in the request body and a request parameter. When the request parameter is passed, I need to validate all the attributes of the object, if not the parameter
takes the default value assigned and only 2 attributes needs to be validated. The path needs to be same for both the case. How can this be achieved?
Currently I have pattern, length and possibles values check for the objects, validated with the help of annotations.
----- Updating the Class -------
@ValidateParent(parent = "parent ", child= "child")public class anClass{@NotNull(groups = {FrstValidator.class, SndValidator.class})@Pattern(regexp = "^[a-zA-Z]{3}$",groups = {FrstValidator.class, SndValidator.class})String str1;@NotNull(groups = {FrstValidator.class, SndValidator.class})@Pattern(regexp = "^[a-zA-Z]{3}$",groups = {FrstValidator.class, SndValidator.class})String str2;@Pattern(regexp = "^[a-zA-Z]{10}$",groups = SndValidator.class)String child;@Pattern(regexp = "^[a-zA-Z]{10}$",groups = SndValidator.class)String parent;@Pattern(regexp = "^[a-zA-Z]{10}$",groups = SndValidator.class)String str3;}
ValidateParent, checks if the parent is also passed when the child is passed in the request body.
答案1
得分: 1
以下是翻译好的内容：
验证分组：
// 验证分组仅为标记接口private interface PartialValidation {}private interface FullValidation {}
请求数据传输对象（DTO）：
@Dataprivate static class Request {// 该字段仅在 FullValidation 验证分组下进行验证@NotNull(groups = FullValidation.class)String field1;// 该字段在两个验证分组下进行验证@NotNull(groups = {FullValidation.class, PartialValidation.class})String field2;}
控制器：
// 仅当没有提供 myParam 参数时执行此端点@PostMapping(value = "/validation",params = "!myParam")public void partialValidation(@RequestParam(defaultValue = "DEFAULT") String myParam,// 请求根据 PartialValidation 验证分组进行验证@RequestBody @Validated(PartialValidation.class) Request request) {System.out.println("部分验证");}// 仅当提供了 myParam 参数时执行此端点@PostMapping(value = "/validation",params = "myParam")public void fullValidation(@RequestParam String myParam,// 请求根据 FullValidation 验证分组进行验证@RequestBody @Validated(FullValidation.class) Request request) {System.out.println("完整验证");}
英文:
You can achieve your goal in an elegant "Spring way", using validation groups and two separate endpoints, distinguished by presence of the request parameter:
Validation groups:
// Validation groups are just marker interfacesprivate interface PartialValidation {}private interface FullValidation {}
Request DTO:
@Dataprivate static class Request {// This field will be validated only for FullValidation validation group@NotNull(groups = FullValidation.class)String field1;// This field will be validated for both validation groups@NotNull(groups = {FullValidation.class, PartialValidation.class})String field2;}
Controller:
// This endpoint is executed only if there is no myParam preprovided@PostMapping(value = "/validation",params = "!myParam")public void partialValidation(@RequestParam(defaultValue = "DEFAULT") String myParam,// Request is validated against the PartialValidation group@RequestBody @Validated(PartialValidation.class) Request request) {System.out.println("Partial validation");}// This endpoint is executed only if there is myParam preprovided@PostMapping(value = "/validation",params = "myParam")public void fullValidation(@RequestParam String myParam,// Request is validated against the FullValidation group@RequestBody @Validated(FullValidation.class) Request request) {System.out.println("Full validation");}
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