Question

我遵循了此代码示例https://kotlinlang.org/docs/tutorials/spring-boot-restful.html，以使基本的Spring Boot应用程序正常工作。现在，我想通过thymleaf添加前端组件。在输出的html中，将变量传递给Model dont始终为null

控制器

@Controller
class IndexController {

    @GetMapping("/")
    fun index(@RequestParam(value = "name", defaultValue = "brian") name: String, model: Model): String {
        model.addAttribute("name", name)
        model.addAttribute("title", "some title")
        return "index"
    }
}

resources / templates / index.html

<html xmlns:th="http://www.thymeleaf.org">
<head>
    <title th:text="${title}"></title>
    <meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
</head>
<body>
<div class="page-content">
    <h1 th:text="|Hello ${name}!|"></h1>
    <h2 th:text="|Welcome to ${title} application|"></h2>
</div>
</body>
</html>

春天似乎掩盖了很多事情，所以也许我错过了一些显而易见的事情。

和构建gradle


plugins {
    id("org.springframework.boot") version "2.1.6.RELEASE"
    id("io.spring.dependency-management") version "1.0.7.RELEASE"
    kotlin("jvm") version "1.2.71"
    kotlin("plugin.spring") version "1.2.71"
}

group = "com.ghost"
version = "0.0.1-SNAPSHOT"
java.sourceCompatibility = JavaVersion.VERSION_1_8

repositories {
    mavenCentral()
}

//extra["springCloudVersion"] = "Greenwich.SR1"

dependencies {
    implementation("org.springframework.boot:spring-boot-starter-oauth2-client")
    implementation("org.springframework.boot:spring-boot-starter-thymeleaf")
    implementation("org.springframework.boot:spring-boot-starter-web")
    implementation("com.fasterxml.jackson.module:jackson-module-kotlin")
    implementation("org.jetbrains.kotlin:kotlin-reflect")
    implementation("org.jetbrains.kotlin:kotlin-stdlib-jdk8")
//  implementation("org.springframework.cloud:spring-cloud-gcp-starter")
//  implementation("org.springframework.cloud:spring-cloud-gcp-starter-storage")
//  implementation("org.springframework.cloud:spring-cloud-starter-sleuth")
    implementation("org.springframework.session:spring-session-core")
    testImplementation("org.springframework.boot:spring-boot-starter-test")
}

//dependencyManagement {
//  imports {
//      mavenBom("org.springframework.cloud:spring-cloud-dependencies:${property("springCloudVersion")}")
//  }
//}

tasks.withType<KotlinCompile> {
    kotlinOptions {
        freeCompilerArgs = listOf("-Xjsr305=strict")
        jvmTarget = "1.8"
    }
}

Spring Boot MVC将变量传递给模型以在HTML中始终为null

0 个答案: