Question

我疯了。我几个小时以来一直在寻找我的错误。

我的表单不会进入操作。但我检查了1000次。一切都拼写正确。我不知道... 请帮忙！

我心爱的错误信息：

HTTP状态404 - 没有为操作定义结果   de.nordakademie.librarymgmt.action.CreatePubAction和结果输入

输入状态报告

消息没有为操作定义结果   de.nordakademie.librarymgmt.action.CreatePubAction和结果输入

说明请求的资源不可用。

Apache Tomcat / 7.0.42

这就是jsp。在文件夹jsp中调用createPublication.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.xml中 newPublication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>

Tiles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是：

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;
    }

}

Answer 1

您是否在日志中看到过堆栈跟踪？

我冒昧地猜测你正在调用你的ERROR响应而你没有映射它。您可以尝试在tile配置中明确定义ERROR结果吗？

我最初的直觉（来自处理一个非常类似的问题）是你的一个JSP文件在tiles配置中拼写错误或者没有包含在Web应用程序中。我会仔细检查一下。

Answer 2

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

您只定义了success。错误说，该操作正在返回input结果，如上所示，如果遇到input结果，则没有关于该怎么做的定义。

快速修复可以是：

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

action - 不调用execute（）方法

2 个答案: