java - 验证不工作 Spring Boot,Spring in Action 练习
问题描述
我正在跟随 Spring in Action 中的一章练习,该章通过验证,但即使我使用空输入发布表单,它也不会返回任何形式的验证错误!无论我做什么,我都无法触发验证错误响应,表单只是被接受,因为它完全是空的。
完整项目@https ://github.com/AdrianLarssonGit/tacoworld/tree/master/tacoworld
以下是我假设的相关代码:
订单控制器.java:
package com.tacoworld;
import lombok.extern.slf4j.Slf4j;
import javax.validation.Valid;
import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.validation.Errors;
import org.springframework.validation.annotation.Validated;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import com.tacoworld.TacoOrder;
@Slf4j
@Controller
@Validated
@RequestMapping("/orders")
public class OrderController {
@GetMapping("/current")
public String orderForm(Model model) {
model.addAttribute("tacoOrder", new TacoOrder());
return "orderForm";
}
@PostMapping
public String processOrder(@Valid TacoOrder tacoOrder, Errors errors) {
if(errors.hasErrors()) {
return "orderForm";
}
else {
log.info("Order submitted: " + tacoOrder);
return "redirect:/";
}
}
}
orderForm.html
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" xmlns:th="http://www.thymeleaf.org">
<head>
<title>
Taco Cloud
</title>
<link th:href="@{style.css}" rel="stylesheet" />
</head>
<body>
<form method="POST" th:action="@{/orders}" th:object="${tacoOrder}">
<h1>Order your taco creation</h1>
<img th:src="@{/images/startSplash.jpg}" />
<br>
<a th:href="@{/design}" id="another">Design another taco!</a><br/>
<h3>Deliver my taco to...</h3>
<label for="deliveryName">Name: </label>
<input type="text" th:field="*{deliveryName}" />
<span class="validationError" th:if="${#fields.hasErrors('deliveryName')}" th:errors="*{deliveryName}">TEST Error</span>
<br/>
<label for="deliveryStreet">Street address: </label>
<input type="text" th:field="*{deliveryStreet}"/>
<br/>
<label for="deliveryCity">City: </label>
<input type="text" th:field="*{deliveryCity}"/>
<br/>
<label for="deliveryState">State: </label>
<input type="text" th:field="*{deliveryState}"/>
<br/>
<label for="deliveryZip">Zip code: </label>
<input type="text" th:field="*{deliveryZip}"/>
<br/>
<h3>Here's how I'll pay...</h3>
<label for="ccNumber">Credit Card #: </label>
<input type="text" th:field="*{ccNumber}"/>
<br/>
<label for="ccExpiration">Expiration: </label>
<input type="text" th:field="*{ccExpiration}"/>
<br/>
<label for="ccCVV">CVV: </label>
<input type="text" th:field="*{ccCVV}"/>
<br/>
<input type="submit" value="Submit order" />
</form>
</body>
TacoOrder.java:
package com.tacoworld;
import java.util.List;
import javax.validation.constraints.Digits;
import javax.validation.constraints.NotBlank;
import javax.validation.constraints.Pattern;
import org.hibernate.validator.constraints.CreditCardNumber;
import java.util.ArrayList;
import lombok.Data;
@Data
public class TacoOrder {
@NotBlank(message="Delivery name is required")
private String deliveryName;
@NotBlank(message="Name must be at least 5 char long")
private String deliveryStreet;
@NotBlank(message="Name must be at least 5 char long")
private String deliveryCity;
@NotBlank(message="Name must be at least 5 char long")
private String deliveryState;
@NotBlank(message="Name must be at least 5 char long")
private String deliveryZip;
@CreditCardNumber(message="Name must be at least 5 char long")
private String ccNumber;
@Pattern(regexp="^(0[1-9]|1[0-2])([\\/])([1-9][0-9])$",message="Wrong pattern MM/YY is needed")
private String ccExpiration;
@Digits(integer=3, fraction=0,message="Invalid CCV")
private String ccCVV;
private List<Taco> tacos = new ArrayList<>();
public void addTaco(Taco taco) {
this.tacos.add(taco);
}
}
我正在使用 Spring Boot,所以除了尝试解决这个特定问题外,没有做太多的 POM 编辑,我还是将它附在此处以供参考:
pom.xml
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.5.2</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.tacoworld</groupId>
<artifactId>tacoworld</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>tacoworld</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>16</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>1.18.12</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>javax.validation</groupId>
<artifactId>validation-api</artifactId>
</dependency>
<dependency>
<groupId>org.hibernate.validator</groupId>
<artifactId>hibernate-validator</artifactId>
<version>6.0.13.Final</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
</plugins>
</build>
</project>
解决方案
删除整个 POM,关闭 Eclipse 然后通过 Spring Boot 重新生成 POM 似乎已经解决了这个问题。
不知道是 POM 还是 Eclipse 起作用了,但现在它确实起作用了。
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