[英]HTTP Status 404 - Servlet not found
I have a project in Eclipse and trying to call a servlet from the web browser. 我在Eclipse中有一个项目,尝试从Web浏览器调用servlet。 The image shows the structure of my project.
该图显示了我的项目的结构。 Although I set the
url
in the annotation I still can't get find the resource. 尽管我在注释中设置了
url
,但仍然找不到资源。
Here is my code: 这是我的代码:
package java.enablingKeyWordSearch;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
@WebServlet(asyncSupported = false, name = "HelloServlet", urlPatterns = {"/hello"})
public class TestServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.write("<h2>Hello Servlet One </h2>");
out.close();
}
}
I have tried calling the servlet using the following: http://localhost:8080/MultiKeywordSearch/hello http://localhost:8080/MultiKeywordSearch/src/java/enablingKeyWordSearch/hello 我尝试使用以下命令调用servlet: http:// localhost:8080 / MultiKeywordSearch / hello http:// localhost:8080 / MultiKeywordSearch / src / java / enablingKeyWordSearch / hello
... and so on. ... 等等。 Yet, I get an HTTP Status 404 Error.
但是,我收到了HTTP状态404错误。
This is the content of my web.xml
file: 这是我的
web.xml
文件的内容:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>MultiKeywordSearch</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
</web-app>
I am using Apache Tomcat v8.0 if that makes a difference. 我正在使用Apache Tomcat v8.0,如果有帮助的话。
UPDATE: showing source listing in the new screenshot; 更新:在新的屏幕截图中显示源列表; removed java namespace
删除了Java名称空间
EDIT 2.0 web.xml: 编辑2.0 web.xml:
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd" id="WebApp_ID" version="3.1">
<display-name>MultiKeywordSearch</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>HelloServlet</servlet-name>
<servlet-class>enablingKeyWordSearch.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>HelloServlet</servlet-name>
<url-pattern>/multiKeywordSearch</url-pattern>
</servlet-mapping>
</web-app>
The enablingKeyWordSearch.TestServlet.java
file: enablingKeyWordSearch.TestServlet.java
文件:
package enablingKeyWordSearch;
import java.io.IOException;
import java.io.PrintWriter;
import javax.servlet.ServletException;
import javax.servlet.annotation.MultipartConfig;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//@WebServlet(asyncSupported = false, name = "HelloServlet", urlPatterns = {"/hello"})
@WebServlet(name = "HelloServlet", urlPatterns = {"/multiKeywordSearch"})
@MultipartConfig
public class TestServlet extends HttpServlet {
@Override
protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
resp.setContentType("text/html");
PrintWriter out = resp.getWriter();
out.write("<h2>Hello Servlet One </h2>");
out.close();
}
}
Still getting a 404 error sadly. 可悲的是仍然出现404错误。
@WebServlet("/multiKeywordSearch")
@MultipartConfig
and then try this.
http://localhost:8080/MultiKeyewordSearch/multiKeywordSearch
Try updating your web.xml 尝试更新您的web.xml
<servlet>
<servlet-name>helloServlet</servlet-name>
<servlet-class>java.enablingKeyWordSearch.TestServlet</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>helloServlet</servlet-name>
<url-pattern>/hello</url-pattern>
</servlet-mapping>
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