Question

我尝试使用Spring Web MVC 4.3.2和嵌入式Tomcat 7.0.64构建Web应用程序。

我没有设法编写正确的main方法来启动嵌入式Tomcat。它适用于Spring Controller发送x -= y = 100 x /= y = 2 x %= y = 0内容（JSON）但JSP视图失败。

@ResponseBody

对于JSP视图，它说：请求的资源不可用（WEB-INF / views / home.jsp）HTTP 404

如果我将public static void main(String[] args) throws Exception { String appBase = ".";// What to put here ? Tomcat tomcat = new Tomcat(); String contextPath = ""; String port = System.getProperty("server.port"); tomcat.setPort(port == null ? 8080 : Integer.valueOf(port)); tomcat.getHost().setAppBase(appBase); Context context = tomcat.addWebapp(contextPath, appBase); // So that it works when in it's launched from IntelliJ or Eclipse // Also need that a folder named "META-INF" exists in build/classes/main // https://bz.apache.org/bugzilla/show_bug.cgi?id=52853#c19 ((StandardJarScanner) context.getJarScanner()).setScanAllDirectories(true); tomcat.start(); tomcat.getServer().await(); }变量设置为JSP的绝对路径，它就可以工作。但是，当然，它不是一个解决方案，因为它不适用于另一台机器。我需要一条相对路径。

如果我将appBase varibale设置为appBase，则Tomcat无法启动以下错误："src/main/webapp"。

此外，使用Gradle fat jar技术构建的jar不包含WEB-INF目录。

如何使用嵌入式Tomcat和JSP（使用java.lang.IllegalArgumentException: Document base C:\blabla\spring-jsp-embedded-tomcat\tomcat.8080\src\main\webapp\src\main\webapp does not exist or is not a readable directory启动）创建一个简单的Spring MVC应用程序？

build.gradle：

java -cp path/to/my/jar com.app.Launcher

Tomcat启动器：

apply plugin: 'java'

sourceCompatibility = 1.7
version = '1.0'

jar {
    from { configurations.compile.collect { it.isDirectory() ? it : zipTree(it) } }
}

repositories {
    maven { url "http://repo1.maven.org/maven2" }
}

dependencies {

    compile group: 'org.apache.logging.log4j', name: 'log4j-api', version: '2.6.2'
    compile group: 'org.apache.logging.log4j', name: 'log4j-core', version: '2.6.2'
    compile group: 'org.apache.logging.log4j', name: 'log4j-slf4j-impl', version: '2.6.2'

    compile 'org.springframework:spring-webmvc:4.3.2.RELEASE'

    compile 'com.fasterxml.jackson.core:jackson-databind:2.7.0'

    compile 'javax.servlet:javax.servlet-api:3.0.1'
    compile 'javax.servlet.jsp:jsp-api:2.2'
    compile 'javax.servlet:jstl:1.2'

    // Embedded Tomcat
    // 2 mandatory libs
    compile 'org.apache.tomcat.embed:tomcat-embed-core:7.0.64'
    compile 'org.apache.tomcat.embed:tomcat-embed-logging-juli:7.0.64'
    // To enable JSPs
    compile 'org.apache.tomcat.embed:tomcat-embed-jasper:7.0.64'

    testCompile group: 'junit', name: 'junit', version: '4.+'

}

Spring网络应用初始化程序：

public class Launcher {

    public static void main(String[] args) throws Exception {
        String contextPath = "";
        // String appBase = "C:/absolute/path/to/webapp/dir"; // It works but of course I need a relative path
        // String appBase = "."; // Works only for Controller sending back ResponseBody (JSON) but fail to find jsp files
        String appBase = "src/main/webapp"; // Tomcat does not start properly

        Tomcat tomcat = new Tomcat();

        String port = System.getProperty("server.port");
        tomcat.setPort(port == null ? 8080 : Integer.valueOf(port));

        tomcat.getHost().setAppBase(appBase);
        Context context = tomcat.addWebapp(contextPath, appBase);

        // So that it works when in it's launched from IntelliJ or Eclipse
        // Also need that a folder named "META-INF" exists in build/classes/main
        // https://bz.apache.org/bugzilla/show_bug.cgi?id=52853#c19
        ((StandardJarScanner) context.getJarScanner()).setScanAllDirectories(true);

        tomcat.start();
        tomcat.getServer().await();
    }

}

WebConfig：

public class MyWebAppInitializer extends AbstractAnnotationConfigDispatcherServletInitializer {

    @Override
    protected String[] getServletMappings() {
        return new String[] { "/" };
    }
    @Override
    protected Class<?>[] getRootConfigClasses() {
        return new Class<?>[] { RootConfig.class };
    }
    @Override
    protected Class<?>[] getServletConfigClasses() {
        return new Class<?>[] { WebConfig.class };
    }

}

文件夹结构：

Answer 1

显然，嵌入式Tomcat希望静态资源位于META-INF/resources目录中。我遵循了这个：tutorial我检查了最终jar的结构。

所以我修改了Gradle构建脚本以将JSP放在那里。

sourceSets {
    main {
        resources.srcDirs = ["src/main/webapp"]
        output.resourcesDir = "$buildDir/classes/main/META-INF/resources"
    }
}

现在它有效。但是，我觉得它是一个临时工作。如果某人有更满意和更有教育意义的答案，我会很高兴得到它。

Spring 4 +嵌入式Tomcat 7

1 个答案: