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java - Action - 不调用execute()方法

转载 作者：行者123 更新时间：2023-12-01 04:14:21 25 4
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我快疯了..几个小时以来我一直在寻找我的错误。

我的表单没有进入操作。但我检查了1000遍。一切都拼写正确。我不知道...请大家帮忙!

我心爱的错误消息:

HTTP Status 404 - No result defined for action de.nordakademie.librarymgmt.action.CreatePubAction and result input

type Status report

message No result defined for action de.nordakademie.librarymgmt.action.CreatePubAction and result input

description The requested resource is not available.

Apache Tomcat/7.0.42

这就是jsp。在名为 createPublication.jsp 的文件夹 jsp

<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
    pageEncoding="ISO-8859-1"%>
<%@taglib uri="/struts-tags" prefix="s"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">


<title></title>
</head>
<body>
    <h3>Fügen Sie eine neue Publikation hinzu</h3>
    <s:form action="createPubAction">
        <s:textfield key="publication.title" />
        <%-- <s:textfield key="publication.author" /> --%>
        <s:textfield key="publication.publisher" />
        <s:textfield key="publication.publishment" />
        <s:textfield key="publication.isbn" />
        <s:textfield key="publication.stock" />
        <s:if test="%{publicationtypes.isEmpty()}">
            keine Publikationstypen
        </s:if>
        <s:else>
            <s:select Listkey="publication.type" list="publicationtypes.{type}" />
        </s:else>

        <s:if test="%{keywords.isEmpty()}">
            keine Schlagwörter
        </s:if>
        <s:else>
        <s:checkboxlist key="publication.keyword" label="Schlagworte"
            name="keywordsL1" list="keywords.{name}" />
        </s:else> 
        <s:submit label="save" value="Speichern" />
    </s:form>
</body>
</html>

Struts.xmlnewPublication 正在调用我需要输入所需信息的页面

<?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">

<!-- mapping of global-results and global-exceptions -->

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

    <package name="default" extends="struts-default" namespace="/">
        <result-types>
            <result-type name="tiles"
                class="org.apache.struts2.views.tiles.TilesResult" />
        </result-types>

        <default-action-ref name="Start" />

        <action name="Start"     class="de.nordakademie.librarymgmt.action.StartAction">
            <result type="tiles" name="success">main</result>
        </action>

        <action name="newPublication"
            class="de.nordakademie.librarymgmt.action.NewPublication">
            <result type="tiles" name="success">createPublication</result>
        </action>

        <action name="createPubAction"
            class="de.nordakademie.librarymgmt.action.CreatePubAction">
            <result type="tiles" name="success">catalog</result>
        </action>


        <action name="catalogAction"
            class="de.nordakademie.librarymgmt.action.navi.CatalogAction">
            <result type="tiles" name="success">catalog</result>
        </action>

    </package>
</struts>

图 block 文件

<?xml version="1.0" encoding="UTF-8" ?>

<!DOCTYPE tiles-definitions PUBLIC
        "-//Apache Software Foundation//DTD Tiles Configuration 2.0//EN"
        "http://tiles.apache.org/dtds/tiles-config_2_0.dtd">

    <tiles-definitions>
        <definition name="main" template="/jsp/main.jsp">
            <put-attribute name="title" value="Dashboard"/>
            <put-attribute name="menu" value="/jsp/menu.jsp"/>
            <put-attribute name="header" value="/jsp/header.jsp"/>
            <put-attribute name="content" value="/jsp/start.jsp"/>
        </definition>

        <definition name="dashboard" extends="main">
            <put-attribute name="title" value="Dashboard"/>
            <put-attribute name="content" value="/jsp/start.jsp"/>
        </definition>

        <definition name="rental" extends="main">
            <put-attribute name="title" value="Verleihvorgänge"/>
            <put-attribute name="content" value="/jsp/rental.jsp"/>
        </definition>

        <definition name="catalog" extends="main">
            <put-attribute name="title" value="Katalog"/>
            <put-attribute name="content" value="/jsp/catalog.jsp"/>
        </definition>

        <definition name="createPublication" extends="main">
            <put-attribute name="title" value="Neue Publikation erstellen"/>
            <put-attribute name="content" value="/jsp/createPublication.jsp"/>
        </definition>
    </tiles-definitions>

最后但并非最不重要的行动:

package de.nordakademie.librarymgmt.action;

import com.opensymphony.xwork2.ActionSupport;

import de.nordakademie.librarymgmt.model.Publication;
import de.nordakademie.librarymgmt.service.IPublicationService;

public class CreatePubAction extends ActionSupport {
    private static final long serialVersionUID = 1L;
    private Publication publication;
    private IPublicationService publicationService;

    @Override
    public String execute() throws Exception {
        try{
            publicationService.savePublication(publication);
            return SUCCESS;
        } catch(Exception e){
            e.printStackTrace();
            return ERROR;
        }
    }

    public Publication getPublication() {
        return publication;
    }

    public void setPublication(Publication publication) {
        this.publication = publication;
    }

    public IPublicationService getPublicationService() {
        return publicationService;
    }

    public void setPublicationService(IPublicationService publicationService) {
        this.publicationService = publicationService;
    }

}

最佳答案

您在日志中看到过堆栈跟踪吗？

我大胆猜测您的错误响应正在被调用，而您没有映射它。您可以尝试在图 block 配置中显式定义错误结果吗？

我最初的直觉(来自处理过一个非常相似的问题)是您的一个 JSP 文件要么在tiles配置中拼写错误，要么没有包含在Web应用程序中。我会仔细检查一下。

关于java - Action - 不调用execute()方法，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/19589118/

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