java - JasperException springframework.org/tags/form は埋め込み Tomcat でのみ解決できません

Question

組み込みの Tomcat で <%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%> を使用すると、以下のエラーが発生するのはなぜですか? 依存関係が埋め込まれていない同じ POM で同じ JSP を試し、それを Tomcat サーバーにデプロイすると、エラーはまったく発生しません。

ここでいくつかの質問を読んで、特定の依存関係を追加することを提案するいくつかの回答を同様の問題で読みました。試してみましたが、正直なところ、問題は組み込みの Tomcat に直接関係していると思います。

見つかった最も近い質問は、アプリケーションの起動中にいくつかの構成が欠落していることに疑問を抱かせますが、私の場合、アプリケーションの起動中に他に何をセットアップできるかわかりませんでした。

スタータークラス:

public class App
{
    private static File getRootFolder() {
        try {
            File root;
            String runningJarPath = App.class.getProtectionDomain().getCodeSource().getLocation().toURI().getPath().replaceAll("\\\\", "/");
            int lastIndexOf = runningJarPath.lastIndexOf("/target/");
            if (lastIndexOf < 0) {
                root = new File("");
            } else {
                root = new File(runningJarPath.substring(0, lastIndexOf));
            }
            System.out.println("application resolved root folder: " + root.getAbsolutePath());
            return root;
        } catch (URISyntaxException ex) {
            throw new RuntimeException(ex);
        }
    }
    public static void main(String[] args) throws Exception {
        File root = getRootFolder();
System.setProperty("org.apache.catalina.startup.EXIT_ON_INIT_FAILURE", "true");
        Tomcat tomcat = new Tomcat();
        Path tempPath = Files.createTempDirectory("tomcat-base-dir");
        tomcat.setBaseDir(tempPath.toString());
        //The port that we should run on can be set into an environment variable
        //Look for that variable and default to 8080 if it isn't there.
        String webPort = System.getenv("PORT");
        if (webPort == null || webPort.isEmpty()) {
            webPort = "8080";
        }
        tomcat.setPort(Integer.valueOf(webPort));
        File webContentFolder = new File(root.getAbsolutePath(), "src/main/webapp/");
        if (!webContentFolder.exists()) {
            webContentFolder = Files.createTempDirectory("default-doc-base").toFile();
        }
        StandardContext ctx = (StandardContext) tomcat.addWebapp("", webContentFolder.getAbsolutePath());
        //Set execution independent of current thread context classloader (compatibility with exec:java mojo)
        ctx.setParentClassLoader(App.class.getClassLoader());
        //Disable TLD scanning by default
        if (System.getProperty(Constants.SKIP_JARS_PROPERTY) == null && System.getProperty(Constants.SKIP_JARS_PROPERTY) == null) {
            System.out.println("disabling TLD scanning");
            StandardJarScanFilter jarScanFilter = (StandardJarScanFilter) ctx.getJarScanner().getJarScanFilter();
            jarScanFilter.setTldSkip("*");
       }
        System.out.println("configuring app with basedir: " + webContentFolder.getAbsolutePath());
        // Declare an alternative location for your "WEB-INF/classes" dir
        // Servlet 3.0 annotation will work
        File additionWebInfClassesFolder = new File(root.getAbsolutePath(), "target/classes");
        WebResourceRoot resources = new StandardRoot(ctx);
        WebResourceSet resourceSet;
        if (additionWebInfClassesFolder.exists()) {
            resourceSet = new DirResourceSet(resources, "/WEB-INF/classes", additionWebInfClassesFolder.getAbsolutePath(), "/");
            System.out.println("loading WEB-INF resources from as '" + additionWebInfClassesFolder.getAbsolutePath() + "'");
        } else {
            resourceSet = new EmptyResourceSet(resources);
        }
        resources.addPreResources(resourceSet);
        ctx.setResources(resources);
        tomcat.start();
        tomcat.getServer().await();
    }
}

エラー：

    org.apache.jasper.JasperException: The absolute uri: http://www.springframework.org/tags/form cannot be resolved in either web.xml or the jar files deployed with this application
       org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:55)
    org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:277)
           org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:75)
            org.apache.jasper.compiler.TagLibraryInfoImpl.generateTldResourcePath(TagLibraryInfoImpl.java:243)
            org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:124)
           org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:421)
            org.apache.jasper.compiler.Parser.parseDirective(Parser.java:479)
            org.apache.jasper.compiler.Parser.parseElements(Parser.java:1435)
            org.apache.jasper.compiler.Parser.parse(Parser.java:139)
           org.apache.jasper.compiler.ParserController.doParse(ParserController.java:227)
         org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)
            org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199)
            org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
            org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)
            org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)
            org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:585)
           org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
            javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1243)
org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:968)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:859)
            javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
    org.apache.jasper.JasperException: The absolute uri: http://www.springframework.org/tags/form cannot be resolved in either web.xml or the jar files deployed with this application
org.apache.jasper.compiler.DefaultErrorHandler.jspError(DefaultErrorHandler.java:55)
org.apache.jasper.compiler.ErrorDispatcher.dispatch(ErrorDispatcher.java:277)
org.apache.jasper.compiler.ErrorDispatcher.jspError(ErrorDispatcher.java:75)
org.apache.jasper.compiler.TagLibraryInfoImpl.generateTldResourcePath(TagLibraryInfoImpl.java:243)
            org.apache.jasper.compiler.TagLibraryInfoImpl.<init>(TagLibraryInfoImpl.java:124)
org.apache.jasper.compiler.Parser.parseTaglibDirective(Parser.java:421)
org.apache.jasper.compiler.Parser.parseDirective(Parser.java:479)
org.apache.jasper.compiler.Parser.parseElements(Parser.java:1435)
            org.apache.jasper.compiler.Parser.parse(Parser.java:139)
org.apache.jasper.compiler.ParserController.doParse(ParserController.java:227)
org.apache.jasper.compiler.ParserController.parse(ParserController.java:100)
org.apache.jasper.compiler.Compiler.generateJava(Compiler.java:199)
            org.apache.jasper.compiler.Compiler.compile(Compiler.java:356)
            org.apache.jasper.compiler.Compiler.compile(Compiler.java:336)
            org.apache.jasper.compiler.Compiler.compile(Compiler.java:323)
org.apache.jasper.JspCompilationContext.compile(JspCompilationContext.java:585)
org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:363)
org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:396)
org.apache.jasper.servlet.JspServlet.service(JspServlet.java:340)
            javax.servlet.http.HttpServlet.service(HttpServlet.java:729)
org.springframework.web.servlet.view.InternalResourceView.renderMergedOutputModel(InternalResourceView.java:168)
org.springframework.web.servlet.view.AbstractView.render(AbstractView.java:303)
org.springframework.web.servlet.DispatcherServlet.render(DispatcherServlet.java:1243)
org.springframework.web.servlet.DispatcherServlet.processDispatchResult(DispatcherServlet.java:1027)
org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:971)
org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:893)
org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:968)
org.springframework.web.servlet.FrameworkServlet.doGet(FrameworkServlet.java:859)
            javax.servlet.http.HttpServlet.service(HttpServlet.java:622)
org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:844)
            javax.servlet.http.HttpServlet.service(HttpServlet.java:729)      org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:844)
            javax.servlet.http.HttpServlet.service(HttpServlet.java:729)

インデックス.jsp:

<%@ taglib prefix="form" uri="http://www.springframework.org/tags/form"%>
<html>
<body>
<h2>Uploading a file.. </h2>
      <form:form method="POST" commandName="file"     enctype="multipart/form-data">
              Upload your file please:
              <input type="file" name="file" />
              <input type="submit" value="upload2" />
              <form:errors path="file" cssStyle="color: #ff0000;" />
       </form:form>
</body>
</html>

POM:

<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 http://maven.apache.org/xsd/maven-4.0.0.xsd">
       <modelVersion>4.0.0</modelVersion>
       <groupId>com.myCompany</groupId>
       <artifactId>AuthFileUpload</artifactId>
       <version>0.0.1-SNAPSHOT</version>
       <packaging>jar</packaging>
       <name>AuthFileUpload</name>
       <url>http://maven.apache.org</url>
       <properties>
              <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
              <tomcat.version>8.0.32</tomcat.version>
              <java.version>1.8</java.version>
              <maven.compiler.plugin.version>2.1</maven.compiler.plugin.version>
              <spring.version>4.2.5.RELEASE</spring.version>
       </properties>
       <dependencies>
              <dependency>
                     <groupId>org.springframework</groupId>
                     <artifactId>spring-webmvc</artifactId>
                     <version>${spring.version}</version>
              </dependency>
              <dependency>
                     <groupId>org.apache.tomcat.embed</groupId>
                     <artifactId>tomcat-embed-core</artifactId>
                     <version>${tomcat.version}</version>
              </dependency>
              <dependency>
                     <groupId>org.apache.tomcat.embed</groupId>
                     <artifactId>tomcat-embed-logging-juli</artifactId>
                     <version>${tomcat.version}</version>
              </dependency>
              <dependency>
                     <groupId>org.apache.tomcat.embed</groupId>
                     <artifactId>tomcat-embed-jasper</artifactId>
                     <version>${tomcat.version}</version>
              </dependency>
              <dependency>
                     <groupId>org.apache.tomcat</groupId>
                     <artifactId>tomcat-jasper</artifactId>
                     <version>${tomcat.version}</version>
              </dependency>
              <dependency>
                     <groupId>org.apache.tomcat</groupId>
                     <artifactId>tomcat-jasper-el</artifactId>
                     <version>${tomcat.version}</version>
              </dependency>
              <dependency>
                     <groupId>org.apache.tomcat</groupId>
                     <artifactId>tomcat-jsp-api</artifactId>
                     <version>${tomcat.version}</version>
              </dependency>

              <!-- the next dependencies I added because I read in somewhere someone has fixed similar error by adding them-->
              <dependency>
                     <groupId>commons-fileupload</groupId>
                     <artifactId>commons-fileupload</artifactId>
                     <version>1.3.1</version>
              </dependency>
              <dependency>
                     <groupId>javax.servlet</groupId>
                     <artifactId>jstl</artifactId>
                     <version>1.2</version>
              </dependency>
              <dependency>
                     <groupId>javax.servlet</groupId>
                     <artifactId>servlet-api</artifactId>
                     <version>2.5</version>
              </dependency>
              <dependency>
                     <groupId>taglibs</groupId>
                     <artifactId>standard</artifactId>
                     <version>1.1.2</version>
              </dependency>
              <dependency>
                     <groupId>org.springframework.security</groupId>
                     <artifactId>spring-security-taglibs</artifactId>
                     <version>4.0.4.RELEASE</version>
              </dependency>
       </dependencies>
       <build>
              <finalName>embeddedTomcatSample</finalName>
              <plugins>
                     <plugin>
                           <groupId>org.apache.maven.plugins</groupId>
                           <artifactId>maven-compiler-plugin</artifactId>
                           <version>${maven.compiler.plugin.version}</version>
                           <configuration>
                                  <source>${java.version}</source>
                                  <target>${java.version}</target>
                           </configuration>
                     </plugin>
                     <plugin>
                           <groupId>org.codehaus.mojo</groupId>
                           <artifactId>appassembler-maven-plugin</artifactId>
                           <version>1.1.1</version>
                           <configuration>
<assembleDirectory>target</assembleDirectory>
                                  <programs>
                                         <program>
<mainClass>launch.Main</mainClass>
                                                <name>webapp</name>
                                         </program>
                                  </programs>
                           </configuration>
                           <executions>
                                  <execution>
                                         <phase>package</phase>
                                         <goals>
                                                <goal>assemble</goal>
                                         </goals>
                                  </execution>
                           </executions>
                     </plugin>
              </plugins>
       </build>
</project>

*** 2016/03/03 編集

Eclipseから正常に実行されました

アプリケーション解決ルートフォルダー: C:\STS\wsRestTemplate\AuthFileUpload

basedir でアプリを構成する: C:\STS\wsRestTemplate\AuthFileUpload\src\main\webapp

「C:\STS\wsRestTemplate\AuthFileUpload\target\classes」として WEB-INF リソースをロードしています

java -jar myExecutableJar.jar から実行し、HTTP ステータス 404 - /upload in browser を取得しました

アプリケーション解決ルートフォルダー: C:\Program Files\Java\jdk1.8.0_45\jre

basedir でアプリを構成する: C:\Users\e049447\AppData\Local\Temp\default-doc-base2930321463161270235

*** "loading WEB-INF..." INFO がないことがわかります。明らかに、additionWebInfClassesFolder.exists() が false を返したため、「resourceSet = new EmptyResourceSet(resources)」です。Eclipse と同様に、このシナリオで WEB-INF をロードする必要があるのは何ですか?

score 0 · Accepted Answer

TLD スキャンを無効にしています:

   if (System.getProperty(Constants.SKIP_JARS_PROPERTY) == null && System.getProperty(Constants.SKIP_JARS_PROPERTY) == null) {
        System.out.println("disabling TLD scanning");
        StandardJarScanFilter jarScanFilter = (StandardJarScanFilter) ctx.getJarScanner().getJarScanFilter();
        jarScanFilter.setTldSkip("*");
   }

前の行にコメントを付けると、機能するはずです。

乾杯

java - JasperException springframework.org/tags/form は埋め込み Tomcat でのみ解決できません

Eclipseから正常に実行されました

java -jar myExecutableJar.jar から実行し、HTTP ステータス 404 - /upload in browser を取得しました

1 に答える 1

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