我是Spring Boot新手,希望有人能回答我的问题。当我运行程序时,它显示单词 post 而不是我给他们的数据 我的 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>3.4.0</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>tmang.luvtocode</groupId>
<artifactId>demo</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>demo</name>
<description>Demo project for Spring Boot</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>17</java.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-thymeleaf</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-validation</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web-services</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-devtools</artifactId>
<scope>runtime</scope>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</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>
我的 RestController 文件
package tmang.luvtocode.demo.controller;
//import org.springframework.stereotype.Controller;
import org.springframework.ui.Model;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import tmang.luvtocode.demo.domain.Post;
@RestController
@RequestMapping(value="/posts")
public class PostController {
@GetMapping
public String postPage(Model model){
Post post = new Post();
post.setTitle("Hello Spring Boot");
post.setDescription("Spring Boot");
post.setBody("Spring Boot is Awesome");
model.addAttribute("post", post);
return "post";
}
}
我的数据评论课
package tmang.luvtocode.demo.domain;
import java.time.LocalDateTime;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@Getter
@Setter
@AllArgsConstructor
@NoArgsConstructor
public class Comment {
private Integer id;
private String title;
private String authorName;
private String body;
private LocalDateTime createdOn;
private LocalDateTime updatedOn;
}
我的课后数据
package tmang.luvtocode.demo.domain;
import java.time.LocalDateTime;
import java.util.List;
import lombok.AllArgsConstructor;
import lombok.Builder;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
@Getter
@Setter
@AllArgsConstructor
@NoArgsConstructor
@Builder
public class Post {
private Integer id;
private String title;
private String description;
private String body;
private String slug;
private PostStatus postStatus;
private LocalDateTime createdOn;
private LocalDateTime updatedOn;
private List<Comment> comments;
}
我的枚举帖子状态
package tmang.luvtocode.demo.domain;
public enum PostStatus {
DRAFT,PUBLISHED
}
我的 post.html 文件位于模板内
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Spring Blog</title>
</head>
<body>
<h1>Welcome to Spring Blog</h1>
<h3 th:text="${post.title}"></h3>
<h6 th:text="${post.description}"></h6>
<div th:text="{post.body}"></div>
</body>
</html>
我不知道问题的原因是什么,它打印了单词“post”而不是我给他们的数据。希望有人能为我解决问题。谢谢
这是因为你的控制器层返回一个字符串“post”而不是 post 对象