在Netbeans 7.3.1上运行Struts 2应用程序时出现无操作Map错误

6yt4nkrj  于 2022-11-10  发布在  其他
关注(0)|答案(2)|浏览(151)

正在尝试构建将用户定向到某个页面的Struts 2应用程序（Display.jsp），它显示了用户定义的RGB颜色配置的颜色。我从BudiKarniawan的Struts2教程中获得了这个示例。当我手动剪切和粘贴源代码并将应用程序手动构建为NBWeb应用程序时，它运行良好，尽管RGB参数抛出验证错误，尽管以正确的格式输入（我检查了我输入的RGB坐标使用逗号分隔的数字，即：绿色为0，255，0）。目录结构为：

然后，我决定导入项目文件（从现有源代码创建Web应用程序选项），使用ant build.xml文件编译并运行应用程序。
当我通过应用程序名称运行应用程序时：

http://localhost:8084/Budi7c

我得到：

no Action mapped for namespace [/]

然后追加struts.xml中Map的操作名称

http://localhost:8084/Budi7c/Design1.action

我得到了一个HTTP 404。但是当我试图手动构建项目时，上面的Deisgn1.action引用起作用了。有人能告诉我正确导入和运行这个应用程序的最佳方法吗？我宁愿使用ant脚本而不是MAVEN（因为使用Maven构建Struts 2似乎有很多问题）。我只想知道一种方法，可以在尝试运行Struts操作时避免404错误。
如果我尝试手动构建应用程序，输入验证会失败（即使我输入数字并用逗号分隔它们）。如果我尝试导入并使用Ant来确保正确构建，我最终会得到404。
应用程序如下：

web.xml：

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
     xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
     version="2.5"> 

     <filter>
    <filter-name>struts2</filter-name>
    <filter-class>org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter</filter-class>    
</filter>
<filter-mapping>
    <filter-name>struts2</filter-name>
    <url-pattern>/*</url-pattern>
</filter-mapping>

<!-- Restrict direct access to JSPs. 
For the security constraint to work, the auth-constraint
and login-config elements must be present -->
<security-constraint>
    <web-resource-collection>
        <web-resource-name>JSPs</web-resource-name>
        <url-pattern>/jsp/*</url-pattern>
    </web-resource-collection>
    <auth-constraint/>
</security-constraint>

<login-config>
    <auth-method>BASIC</auth-method>
</login-config>
</web-app>

struts.xml：

<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE struts PUBLIC
"-//Apache Software Foundation//DTD Struts Configuration 2.0//EN"
"http://struts.apache.org/dtds/struts-2.0.dtd">

<struts>

<constant name="struts.enable.DynamicMethodInvocation" value="false" />
<constant name="struts.devMode" value="true" />

<package name="app07c" extends="struts-default">
    <action name="Design1">
        <result>/jsp/Design.jsp</result>
    </action>
    <action name="Design2" class="app07c.Design">
        <result name="input">/jsp/Design.jsp</result>
        <result name="success">/jsp/Display.jsp</result>
    </action>
</package>

</struts>

Color.java：

package app07c;
import com.opensymphony.xwork2.ActionSupport;

public class Color extends ActionSupport {
private int red;
private int green;
private int blue;
public int getBlue() {
    return blue;
}
public void setBlue(int blue) {
    this.blue = blue;
}
public int getGreen() {
    return green;
}
public void setGreen(int green) {
    this.green = green;
}
public int getRed() {
    return red;
}
public void setRed(int red) {
    this.red = red;
}
public String getHexCode() {
    return (red < 16? "0" : "") 
            + Integer.toHexString(red)
            + (green < 16? "0" : "")
            + Integer.toHexString(green) 
            + (blue < 16? "0" : "")
            + Integer.toHexString(blue);
}
}

Design.java：

package app07c;
import com.opensymphony.xwork2.ActionSupport;

public class Design extends ActionSupport {
private String designName;
private Color color;
public Color getColor() {
    return color;
}
public void setColor(Color color) {
    this.color = color;
}
public String getDesignName() {
    return designName;
}
public void setDesignName(String designName) {
    this.designName = designName;
}
}

MyColorConverter.java：

package app07c.converter;
import java.util.Map;
import org.apache.struts2.util.StrutsTypeConverter;
import app07c.Color;
import com.opensymphony.xwork2.conversion.TypeConversionException;

public class MyColorConverter extends StrutsTypeConverter {
public Object convertFromString(Map context, String[] values,
        Class toClass) {
    boolean ok = false;
    String rgb = values[0];
    String[] colorComponents = rgb.split(",");
    if (colorComponents != null 
            && colorComponents.length == 3) {
        String red = colorComponents[0];
        String green = colorComponents[1];
        String blue = colorComponents[2];
        int redCode = 0;
        int greenCode = 0;
        int blueCode = 0;
        try {
            redCode = Integer.parseInt(red.trim());
            greenCode = Integer.parseInt(green.trim());
            blueCode = Integer.parseInt(blue.trim());
            if (redCode >= 0 && redCode < 256 
                    && greenCode >= 0 && greenCode < 256 
                    && blueCode >= 0 && blueCode < 256) {
                Color color = new Color();
                color.setRed(redCode);
                color.setGreen(greenCode);
                color.setBlue(blueCode);
                ok = true;
                return color;
            }
        } catch (NumberFormatException e) {
        }
    }
    if (!ok) {
        throw new 
                TypeConversionException("Invalid color codes");
    }
    return null;
}

public String convertToString(Map context, Object o) {
    Color color = (Color) o;
    return color.getRed() + "," 
            + color.getGreen() + ","
            + color.getBlue();
}
}

Design.jsp：

<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>Color</title>
<style type="text/css">@import url(css/main.css);</style>
<style>
.errorMessage {
color:red;
}
</style>
</head>
<body>
<div id="global" style="width:450px">
<h4>Color</h4>
Please enter the RGB components, each of which is
an integer between 0 and 255 (inclusive). Separate two components
with a comma. For example, green is 0,255,0.
<s:form action="Design2">
    <s:textfield name="designName" label="Design Name"/>
    <s:textfield name="color" label="Color"/>
    <s:submit/>     
</s:form>

</div>
</body>
</html>

Display.jsp：

<%@ taglib prefix="s" uri="/struts-tags" %>
<html>
<head>
<title>Design Details</title>
<style type="text/css">@import url(css/main.css);</style>
<style type="text/css">
     .colorSample {
border:1px solid black;
width:100%;
height:100px;
background:#<s:property value="color.hexCode"/>;
}
</style>
</head>
<body>
<div id="global" style="width:250px">
<h4>Design details:</h4>
    Design name: <s:property value="designName"/>
    <br/>Color code: <s:property value="color"/>
    <div class="colorSample"/>
    </div>
    </body>
     </html>

我尝试将web内容文件夹从/jsp更改为/，以使项目结构与目录结构相同。然后，我使用ant构建脚本编译并运行项目，并获得以下堆栈：

ant -f C:\\struts2\\budi_ebook\\struts2extractb\\app07c -DforceRedeploy=false     -Ddirectory.deployment.supported=true -Dnb.wait.for.caches=true run
init:
 deps-module-jar:
deps-ear-jar:
deps-jar:
Warning: Program Files (x86)\F-Secure\Anti-Virus\aquarius\fa.log modified in the future.
Warning: Program Files\CommVault\Simpana\Log Files\CVD.log modified in the future.
Warning: Users\ManaarDC\NTUSER.DAT modified in the future.
Warning: Users\ManaarDC\ntuser.dat.LOG1 modified in the future.
Warning: Users\RedGuard_Admin.MANAARNET\AppData\Local\Temp\3\output1375645810208 modified in     the future.
Warning: Users\RedGuard_Admin.MANAARNET\AppData\Local\Temp\3\toolbar_log.txt modified in the     future.
Warning: Windows\Temp\avg_secure_search.log modified in the future.
Warning: app\ManaarDC\diag\rdbms\orcldw\orcldw\trace\orcldw_dbrm_3148.trc modified in the future.
Warning: app\ManaarDC\diag\rdbms\orcldw\orcldw\trace\orcldw_dbrm_3148.trm modified in the future.
Warning: app\ManaarDC\product\11.2.0\dbhome_1\D5H9RBP1.ManaarNet.com_orclDW\sysman\emd\agntstmp.txt modified in the future.
 Warning: app\ManaarDC\product\11.2.0\dbhome_1\D5H9RBP1.ManaarNet.com_orclDW\sysman\log\emagent.trc modified in the future.
Warning: app\ManaarDC\product\11.2.0\dbhome_1\D5H9RBP1.ManaarNet.com_orclDW\sysman\log\emoms.log modified in the future.
Warning: app\ManaarDC\product\11.2.0\dbhome_1\D5H9RBP1.ManaarNet.com_orclDW\sysman\log\emoms.trc modified in the future.    
Warning: app\ManaarDC\product\11.2.0\dbhome_1\oc4j\j2ee\OC4J_DBConsole_D5H9RBP1.ManaarNet.com_orclDW\log\em-application.log modified in the future.
Warning: inetpub\logs\LogFiles\W3SVC1\u_ex130804.log modified in the future.
C:\struts2\budi_ebook\struts2extractb\app07c\nbproject\build-impl.xml:841: 
java.lang.OutOfMemoryError: GC overhead limit exceeded
at java.util.Arrays.copyOfRange(Arrays.java:2694)
at java.lang.String.<init>(String.java:203)
at java.lang.String.substring(String.java:1913)
at java.util.StringTokenizer.nextToken(StringTokenizer.java:352)
at org.apache.tools.ant.util.FileUtils.normalize(FileUtils.java:741)
at org.apache.tools.ant.util.FileUtils.resolveFile(FileUtils.java:616)
at org.apache.tools.ant.types.resources.FileResource.<init>(FileResource.java:60)
at org.apache.tools.ant.util.SourceFileScanner$1.<init>(SourceFileScanner.java:96)
at org.apache.tools.ant.util.SourceFileScanner.restrict(SourceFileScanner.java:95)
at org.apache.tools.ant.taskdefs.Copy.buildMap(Copy.java:787)
at org.apache.tools.ant.taskdefs.Copy.scan(Copy.java:744)
at org.apache.tools.ant.taskdefs.Copy.iterateOverBaseDirs(Copy.java:666)
at org.apache.tools.ant.taskdefs.Copy.execute(Copy.java:563)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:291)
at sun.reflect.GeneratedMethodAccessor90.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:601)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:392)
at org.apache.tools.ant.Target.performTasks(Target.java:413)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1399)
at org.apache.tools.ant.Project.executeTarget(Project.java:1368)
at org.apache.tools.ant.helper.DefaultExecutor.executeTargets(DefaultExecutor.java:41)
at org.apache.tools.ant.Project.executeTargets(Project.java:1251)
at org.apache.tools.ant.module.bridge.impl.BridgeImpl.run(BridgeImpl.java:283)
at org.apache.tools.ant.module.run.TargetExecutor.run(TargetExecutor.java:541)
at org.netbeans.core.execution.RunClassThread.run(RunClassThread.java:153)
  BUILD FAILED (total time: 12 minutes 5 seconds)
netbeans

2条答案

按热度按时间
zkure5ic

zkure5ic1#

无法从您的项目资源管理器中看到 *web内容根 * 目录，因为它不是目录结构，它是一个项目结构。例如，如果您使用maven，则它应该是[project root]/src/main/webapp。此目录应该包含WEB-INF文件夹。如果您在项目设置中将 *web内容根 * 文件夹设置为/jsp，则这是错误的，因为它会影响JSP和其他项目文件。您应该将其设置为/。在这种情况下，project root 和 web content root 应该相同，或者在 project root 文件夹中创建一个新文件夹，例如WebContent，并将jsp、WEB-INF、和其他web资源。将 *web内容根 * 项目设置设置为/WebContent。然后，您可以在结果Map中使用/jsp/。

赞(0）分享  回复(0）举报  2022-11-10
pbpqsu0x

pbpqsu0x2#

我是这样解决这个问题的。我使用Netbeans的“基于现有源代码的Web应用程序”来导入项目。由于某种原因，导入的项目没有注册“jsp”目录。它只看到了Web Pages目录中的JSP文件，而不是Web Pages/jsp。因此，我只是简单地删除了struts.xml中的/jsp引用。应用程序现在运行良好，验证错误不再存在。
我对这个答案很满意，因为我可以运行这个应用程序，但是我不满意我完全理解IDE如何构建这些类型的应用程序，因为导入的目录结构显然是错误的（并且遗漏了jsp文件夹）。如果有人能进一步说明这一点，或者我应该就在NetBeans中构建Struts2的主题发表一个单独的问题，我将不胜感激

赞(0）分享  回复(0）举报  2022-11-10
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