好的，我很难过。我正在编写一个基于Spring的应用程序，该应用程序查询Web服务以获取基于用户id加载SELECT对象的信息。我已经设置了web.xml和servlet xml文件，设计了初始页面并从index.jsp文件重定向（最终系统将驻留在Tomcat / IIS配置下），其中包含用户名的硬编码值暂时。
每当我尝试运行它时，我都会收到404错误，并且Tomcat日志中没有任何内容。我对JSP / Spring比较陌生，所以这让我疯狂，因为我似乎无法找到问题。
我已尝试删除对Web服务调用的引用，但仍然无法加载页面。
我错过了什么？
下面是代码减去样式表和图片：
UserDatabaseProject.java
/**
*
*/
package enterprisesearch.domain;
/**
* @author bob
*
*/
public class UserDatabaseProject
{
private String _msUserName = "";
private String _msDatabaseName = "";
private String _msDatabaseDescription = "";
private String _msProjectName = "";
private String _msProjectDescription = "";
public UserDatabaseProject()
{
}
public UserDatabaseProject(String psUserName, String psDatabaseName, String psDatabaseDescription, String psProjectName, String psProjectDescription)
{
this._msUserName = psUserName;
this._msDatabaseName = psDatabaseName;
this._msDatabaseDescription = psDatabaseDescription;
this.setProjectName(psProjectName);
this.setProjectDescription(psProjectDescription);
}
/**
* @return the _msProjectName
*/
public final String getProjectName()
{
return this._msProjectName;
}
/**
* @param _msProjectName the _msProjectName to set
*/
public final void setProjectName(String psProjectName)
{
this._msProjectName = psProjectName;
}
/**
* @return the _msProjectDescription
*/
public final String getProjectDescription()
{
return this._msProjectDescription;
}
/**
* @param _msProjectDescription the _msProjectDescription to set
*/
public final void setProjectDescription(String psProjectDescription)
{
this._msProjectDescription = psProjectDescription;
}
/**
* @return the _msUserName
*/
public final String getUserName()
{
return this._msUserName;
}
/**
* @param _msUserName the _msUserName to set
*/
public final void setUserName(String psUserName)
{
this._msUserName = psUserName;
}
/**
* @return the _msDatabaseName
*/
public final String getDatabaseName()
{
return this._msDatabaseName;
}
/**
* @param _msDatabaseName the _msDatabaseName to set
*/
public final void setDatabaseName(String psDatabaseName)
{
this._msDatabaseName = psDatabaseName;
}
/**
* @return the _msDatabaseDescription
*/
public final String getDatabaseDescription()
{
return this._msDatabaseDescription;
}
/**
* @param _msDatabaseDescription the _msDatabaseDescription to set
*/
public final void setDatabaseDescription(String psDatabaseDescription)
{
this._msDatabaseDescription = psDatabaseDescription;
}
}
DouglasService.java
/**
*
*/
package enterprisesearch.domain.service;
import java.io.StringReader;
import java.util.Collection;
import java.util.HashMap;
import java.util.Map;
import javax.xml.xpath.XPath;
import javax.xml.xpath.XPathConstants;
import javax.xml.xpath.XPathExpressionException;
import javax.xml.xpath.XPathFactory;
import org.apache.cxf.jaxws.JaxWsProxyFactoryBean;
import org.springframework.context.ApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.w3c.dom.Element;
import org.w3c.dom.NodeList;
import org.xml.sax.InputSource;
import gov.sec.com.IDouglas;
import enterprisesearch.domain.UserDatabaseProject;
/**
* @author bob
*
*/
public class DouglasService
{
private IDouglas _mtDouglas;
private static Map<Integer, UserDatabaseProject> _muspUserDatabaseProjects = new HashMap<Integer, UserDatabaseProject>();
public DouglasService(String psDouglasUrl)
{
//String endPointAddress = "http://localhost:8080/Douglas/services/Douglas?wsdl";
//ApplicationContext acContext = new ClassPathXmlApplicationContext("context.xml");
JaxWsProxyFactoryBean factory = new JaxWsProxyFactoryBean();
factory.setServiceClass(IDouglas.class);
factory.setAddress(psDouglasUrl);
this._mtDouglas = (IDouglas) factory.create();
}
public String getSecurityToken(String psUserId)
{
String sReturn = "";
this._mtDouglas.getSecurityToken(psUserId);
return sReturn;
}
public String getProjectOptions(String psProjectName)
{
String sReturn = "";
this._mtDouglas.getProjectOptions(psProjectName);
return sReturn;
}
public String getDatabaseFilters(String psDatabaseName)
{
String sReturn = "";
this._mtDouglas.getDatabaseFilters(psDatabaseName);
return sReturn;
}
public Collection<UserDatabaseProject> getUserDatabaseProjects(String psUserName)
{
String sReturn = "";
String sResult = this._mtDouglas.getUserDatabaseProjects(psUserName);
XPathFactory xfactory = XPathFactory.newInstance();
XPath xPath = xfactory.newXPath();
StringReader sr = new StringReader(sResult);
NodeList databases = null;
try
{
databases = (NodeList) xPath.evaluate("/douglasresponse/responsedata/databases", new InputSource(new StringReader(sResult)), XPathConstants.NODESET);
for (int i = 0; i < databases.getLength(); i++)
{
Element elDatabase = (Element) databases.item(i);
String sUserName = xPath.evaluate("database/username", elDatabase);
String sDatabaseName = xPath.evaluate("database/databasename", elDatabase);
String sDatabaseDescription = xPath.evaluate("database/databasedescription", elDatabase);
String sProjectName = xPath.evaluate("database/projectname", elDatabase);
String sProjectDescription = xPath.evaluate("database/projectdescription", elDatabase);
this._muspUserDatabaseProjects.put(new Integer(i), new UserDatabaseProject(sUserName, sDatabaseName, sDatabaseDescription, sProjectName, sProjectDescription));
}
}
catch(XPathExpressionException ex)
{
System.out.print(ex.getMessage());
}
return _muspUserDatabaseProjects.values();
}
public String executeTextQuery(String psSecurityToken, String psProjectName, String psDatabase, String psQueryText, String psOptions, String psFilters)
{
String sReturn = "";
this._mtDouglas.executeTextQuery(psSecurityToken, psProjectName, psDatabase, psQueryText, psOptions, psFilters);
return sReturn;
}
public String executeGetContent(String psSecurityToken, String psProjects, String psDatabases, String psOptions)
{
String sReturn = "";
this._mtDouglas.executeGetContent(psSecurityToken, psProjects, psDatabases, psOptions);
return sReturn;
}
public String executeGetSimilar(String psSecurityToken, String psProjects, String psDatabases, String psOptions)
{
String sReturn = "";
this._mtDouglas.executeGetSimilar(psSecurityToken, psProjects, psDatabases, psOptions);
return sReturn;
}
}
SearchController.java
package enterprisesearch.web;
import enterprisesearch.domain.UserDatabaseProject;
import enterprisesearch.domain.service.DouglasService;
import java.util.Collection;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.ModelAttribute;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
@Controller
public class SearchController
{
//protected final Log logger = LogFactory.getLog(getClass());
private DouglasService dgWebService = new DouglasService("http://localhost:8080/Douglas/services/Douglas");
@RequestMapping("/search.html")
@ModelAttribute("userprojects")
public Collection<UserDatabaseProject> getUserProjects(@RequestParam(value="username", required=true) String psUsername)
{
return this.dgWebService.getUserDatabaseProjects(psUsername);
}
//@RequestMapping("/search.html")
//@ModelAttribute("testmessage")
//public String setMessage()
//{
// return "This is a test!";
//}
}
/WEB-INF/jsp/index.jsp
<jsp:forward page="search.html">
<jsp:param value="lymana" name="username"/>
</jsp:forward>
/WEB-INF/jsp/search.jsp
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<%@ taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<%@ taglib prefix="c" uri="http://java.sun.com/jsp/jstl/core" %>
<%@ taglib prefix="x" uri="http://java.sun.com/jsp/jstl/xml" %>
<%@ taglib prefix="spring" uri="http://www.springframework.org/tags" %>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head>
<title>Enterprise Search</title>
<link href="assets/style_sheets/main.css" rel="stylesheet" type="text/css" />
<script type="text/javascript" language="javascript" src="assets/scripts/controls.js"></script>
</head>
<body>
<form:form method="post" action="" modelAttribute="search">
<table width="100%" border="0" style="border-collapse:collapse; border-spacing: 0px;" cellspacing="0">
<tr id="pageHeader">
<td id="pageHeaderLeft"><img src="assets/images/OCIE_left-1.jpg" style="float:left;" /></td>
<td id="pageHeaderRight"><img src="assets/images/OCIE_right.jpg" /></td>
</tr>
<tr>
<td valign="top" width="50%">
<div id="leftContainer">
<div class="blockHeader">
Text Search
</div>
<div id="TextBlock" class="blockControl">
<label for="taSearchText">Search Text:</label><br />
<textarea id="taSearchText" cols="60" rows="7" style="margin-bottom: .5em;"></textarea>
<br />
<table border="0" style="border-collapse:collapse; border-spacing: 0px;" cellspacing="0">
<tr>
<td width="30%" style="padding: 0em 0em .5em .5em; text-align:right; vertical-align:middle;">
<label for="sltResultsPerPage">Results per page:</label>
</td>
<td width="30%" style="padding: 0em .5em .5em 0em; text-align:left; vertical-align:middle;">
<select id="sltResultsPerPage">
<option value="10">10 per page</option>
<option value="20">20 per page</option>
<option value="50">50 per page</option>
<option value="100">100 per page</option>
</select>
</td>
<td width="40%" rowspan="3" valign="middle" align="center">
<input id="btnSearch" type="button" value="Search" />
</td>
</tr>
<tr>
<td style="padding: 0em 0em .5em .5em; text-align:right; vertical-align:middle;">
<label for="sltSort">Sort results by:</label>
</td>
<td style="padding: 0em .5em .5em 0em; text-align:left; vertical-align:middle;">
<select id="sltSort">
<option value="relevance">Relevance</option>
<option value="dateAsc">Date (Ascending)</option>
<option value="dateDesc">Date (Descending)</option>
</select>
</td>
</tr>
<tr>
<td style="padding: 0em 0em .5em .5em; text-align:right; vertical-align:middle;">
<label for="sltRelevance">Relevance:</label>
</td>
<td style="padding: 0em .5em .5em 0em; text-align:left; vertical-align:middle;">
<select id="sltRelevance">
<option value="90">90% relevant</option>
<option value="80">80% relevant</option>
<option value="70">70% relevant</option>
<option value="60">60% relevant</option>
<option value="50">50% relevant</option>
</select>
</td>
</tr>
</table>
</div><!-- end of textblock -->
<div class="blockHeader"><img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('BooleanBlock');" />
Boolean
</div>
<div id="BooleanBlock" class="blockControl" style="visibility:hidden; display:none;">Boolean Search controls here<br /><br /><br /><br />
</div>
<div class="blockHeader">
<img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('ParametricBlock');" />
Parametric
</div>
<div id="ParametricBlock" class="blockControl" style="visibility:hidden; display:none;">Parametric Search controls here<br /><br /><br /><br />
</div>
<div class="blockHeader"><img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('ClusterBlock');" />
Cluster
</div>
<div id="ClusterBlock" class="blockControl" style="visibility:hidden; display:none;">Cluster results here<br /><br /><br /><br />
</div>
</div>
</td>
<td valign="top" width="50%">
<div id="rightContainer">
<div class="blockHeader"><img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('ProjectsBlock');"/>
Projects
</div>
<div id="ProjectsBlock" class="blockControl">
<label for="sltProjects">Projects:</label><br />
<select id="sltProjects" size="10" onclick="">
<option value="all">All available projects</option>
<c:forEach items="${userprojects}" var="UserDatabaseProject">
<form:option value="${UserDatabaseProject._msProjectName}">${UserDatabaseProject._msProjectDescription}</form:option>
</c:forEach>
</select>
</div>
<div class="blockHeader"><img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('DatabasesBlock');"/>
Databases
</div>
<div id="DatabasesBlock" class="blockControl">
<label for="sltDatabases">Databases:</label><br />
<select id="sltDatabases" size="10" onclick="">
<option value="all">All available databases</option>
<option value="dbTCR20">TCR20 Database Primary</option>
<option value="dbTCR20-1">TCR20 Database Secondary</option>
<option value="dbECC">ECC Emails</option>
</select>
</div>
<div class="blockHeader"><img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('FiltersBlock');"/>
Filters
</div>
<div id="FiltersBlock" class="blockControl">
<label for="sltFilters">Filters:</label><br />
<select id="sltFilters" size="10" onclick="createInput();" multiple="multiple" >
<option value="Comment">TCR20 - Comment</option>
<option value="TCR Subject">TCR20 - Subject</option>
<option value="From Address">ECC - From Address</option>
<option value="ECC Subject">ECC - Subject</option>
<option value="Message Text">ECC - Message Text</option>
</select>
</div>
<div class="blockHeader"><img src="assets/images/RightArrowClosed16x16.jpg" onclick="setAdvancedVisible('SelectedBlock');"/>
<span>Selected Filters</span>
</div>
<div id="SelectedBlock" class="blockControl">
</div>
</div>
</td>
</tr>
<tr>
<td colspan="2">
<hr />
<div>
<div class="resultsHeader">
Search Results
</div>
<div class="resultsControl" style="margin-bottom: 15px;">
</div>
</div>
</td>
</tr>
<tr>
<td id="footer" colspan="2"><hr />Some footer stuff goes here!</td>
</tr>
</table>
</form:form>
</body>
</html>
的web.xml
<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<!-- Register a servlet that despatches requests to registered controllers -->
<servlet>
<servlet-name>es</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<!-- Send all .html files to the Spring dispatcher servlet -->
<servlet-mapping>
<servlet-name>es</servlet-name>
<url-pattern>*.html</url-pattern>
</servlet-mapping>
<!-- Define the web application entry point -->
<welcome-file-list>
<welcome-file>index.html</welcome-file>
</welcome-file-list>
</web-app>
es.xml
<?xml version="1.0" encoding="UTF-8"?>
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns:p="http://www.springframework.org/schema/p"
xmlns:context="http://www.springframework.org/schema/context"
xsi:schemaLocation="http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-2.5.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-2.5.xsd">
<!-- Auto-detect controllers in this package -->
<context:component-scan base-package="enterprisesearch.web"/>
<!-- Prepend /WEB-INF/jsp/ and append .jsp to the view name -->
<bean id="viewResolver" class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix" value="/WEB-INF/jsp/"/>
<property name="suffix" value=".jsp"/>
</bean>
</beans>
答案 0 :(得分：1)
您的控制器绑定到<contextname>/search.html，而不是index.html - <contextname>引用Tomcat映射您的应用程序的the context，这通常是WAR文件的名称，但可以是如果您特别配置了Tomcat，那就是任何事情
调出Spring的日志记录，当您请求没有映射的URL时，您会看到它记录警告。
答案 1 :(得分：0)
您的控制器已经过了，您必须返回ModalAndView或NameOfView而不是Collection<UserDatabaseProject>
请试试这个：
@RequestMapping("/search.html")
@ModelAttribute("userprojects")
public ModelAndMap getUserProjects(@RequestParam(value="username", required=true) String psUsername){
ModelMap modelMap = new ModelMap();
modelMap.put("userprojects", this.dgWebService.getUserDatabaseProjects(psUsername));
return new ModelAndView("index", modelMap);
}
答案 2 :(得分：0)
关注spring mvc的任何好教程。 您的返回类型应该是ModelAndView或其相关类型（因为您使用的是InternalResourceViewResolved）或String名称视图。
如果是基于Rest的方法或ajax，您可以将数据作为集合返回（转换为json）。对于这种方法，您需要在类级别将控制器标记为@RestController，或者在方法级别将控制器标记为@ResponseBody。这种方法主要用于Ajax调用，在这些调用中，您需要遍历收到的json响应并在该页面上设置数据。
在基于Spring mvc的方法中，您需要在ModelAndView中添加所有对象并设置视图名称，如下所示。然后，您可以使用el。
访问该视图上的对象@RequestMapping("/search.html")
@ModelAttribute("userprojects")
public ModelAndView getUserProjects(@RequestParam(value="username", required=true) String psUsername){
ModelAndView modelAndView = new ModelAndView();
// add all the required data which you need on next view page
modelAndView.addObject("userprojects", this.dgWebService.getUserDatabaseProjects(psUsername));
// set the view name which needs to be displayed
modelAndView.setViewName("search");
return modelAndView
}
在Jsp中访问userprojects：
${userprojects._msProjectName}