java - Spring Boot 2.1.2在.yml mvc配置中使用类路径

Question

陷入这个奇怪的问题，我无法确定原因。从Spring MVC迁移到Spring Boot 2，并希望继续使用.jsp View 。想要将.jsp View 存储在resources/templates中。但是，如果放置在/WEB-INF/pages/中，则不会加载它们，但是可以工作。

问题是-为什么会这样？我似乎有很多类似的配置，并且将它们存储在classpath中似乎是正常的做法。

示例错误日志:

2019-01-17 12:02:39,381 WARN  [http-nio-8080-exec-1] resource.ResourceHttpRequestHandler (ResourceHttpRequestHandler.java:642)  - Path represents URL or has "url:" prefix: [classpath:/templates/login.jsp]
2019-01-17 12:02:39,382 DEBUG [http-nio-8080-exec-1] resource.ResourceHttpRequestHandler (ResourceHttpRequestHandler.java:453)  - Resource not found
2019-01-17 12:02:39,383 DEBUG [http-nio-8080-exec-1] servlet.FrameworkServlet (FrameworkServlet.java:1126)  - Exiting from "FORWARD" dispatch, status 404
2019-01-17 12:02:39,384 DEBUG [http-nio-8080-exec-1] servlet.FrameworkServlet (FrameworkServlet.java:1130)  - Completed 404 NOT_FOUN

最低配置:

Spring Boot 2.1.2
application.properties (不起作用):

spring.mvc.view.prefix: classpath:/templates/
spring.mvc.view.suffix: .jsp

logging.level.org.springframework.web: DEBUG

application.properties (有效):

spring.mvc.view.prefix: /WEB-INF/pages/
spring.mvc.view.suffix: .jsp

logging.level.org.springframework.web: DEBUG

gradle :

plugins {
    id 'war'
    id "io.spring.dependency-management" version "1.0.6.RELEASE"
    id "org.springframework.boot" version "2.1.2.RELEASE"
}

repositories {
    maven {
        url = 'http://repo.maven.apache.org/maven2'
    }
}

dependencies {
    implementation 'org.springframework.boot:spring-boot-starter-web'
    implementation 'org.springframework.boot:spring-boot-starter-log4j2'

    compile "javax.servlet:jstl:1.2"
    //providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'
    providedRuntime "org.apache.tomcat.embed:tomcat-embed-jasper"
}

configurations {
    all {
        exclude group: 'org.springframework.boot', module: 'spring-boot-starter-logging'
    }
}

tasks.withType(JavaCompile) {
    options.encoding = 'UTF-8'
}

更新:

我想这与tomcat有关。例如providedRuntime 'org.springframework.boot:spring-boot-starter-tomcat'-即使从.jsp也不加载/WEB-INF/pages，而providedRuntime "org.apache.tomcat.embed:tomcat-embed-jasper"确实会加载，但只能从/WEB-INF/pages中加载

更新2:
因此，它以某种方式与tomcat和.jsp扩展连接。
附加的.jsp问题:

@Override
public void addResourceHandlers(ResourceHandlerRegistry registry) {
    registry.addResourceHandler("/css/**").addResourceLocations("classpath:static/css/");
    registry.addResourceHandler("/js/**").addResourceLocations("classpath:static/js/");
    registry.addResourceHandler("/fonts/**").addResourceLocations("classpath:static/fonts/");
    registry.addResourceHandler("/view/**").addResourceLocations("classpath:static/view/");
    registry.addResourceHandler("/img/**").addResourceLocations("classpath:static/img/");
}

除了.jsp中的/view/文件外，所有资源都正在加载。如果我将.jsp重命名为viewt文件为.html-它们已加载。 (但是，我不想重写很多.jsp逻辑)

Answer 1

您的以下配置是问题

spring.mvc.view.prefix: classpath:/templates/

如下更新 View 资源处理程序配置。

registry.addResourceHandler("/view/**").addResourceLocations("classpath:static/view/");

更新到

registry.addResourceHandler("/view/**").addResourceLocations("classpath:/resources/templates/view/");

确保将所有jsp文件都放在/resources/templates/view/ directoy中，而不是/static/view中

它适用于.html，因为我认为当相关jSTL无法找到 View 时，Spring Boot确实回退到了.html解析器。