我是新來的Maven的/春天,我在努力弄清楚爲什麼我得到這些錯誤。有一堆這樣的問題在網上,但是嘗試使用可用的解決方案後,我仍然無法解決我的錯誤:org.springframework.web.servlet.PageNotFound noHandlerFound錯誤 - 已經嘗試過的一切,仍然沒有工作:/
May 17, 2016 7:01:47 PM org.springframework.web.servlet.PageNotFound noHandlerFound
WARNING: No mapping found for HTTP request with URI [/example/helloWorld/meow] in DispatcherServlet with name 'mvc-dispatcher'
我的設置如下:的Apache Tomcat( 我試圖讓一個REST API,允許我來上傳和下載文件,以及將消息發送來回通過REST調用我現在有3個REST端點定義:
- /helloWorld的/你好 - > GET
- /helloWorld/displayMessage/{msg} - > GET
- /helloWorld/meow - > POST
現在,只有調用1和2工作,而三個是什麼導致上述錯誤。
我使用終端來ping每個端點。以下是我對測試1和測試2所進行的調用的示例:
curl -X GET localhost:8080/example/helloWorld/hello
This works。
不過,我得到一個404響應,以及上面的錯誤,當我做這個命令:
curl -X POST localhost:8080/example/helloWorld/meow -d "{'body':1234}"
我敢肯定,我發送的數據是正確的,但是這不是招」因爲當我檢查我的服務器的catalina.out文件時,我看到上面提到的錯誤,這意味着我甚至無法調試我的請求,因爲URI不起作用。
有定義的前端,但我不喜歡它,因爲我只需要調用REST。
這裏是我的控制器:
...imports...
@Controller
@RequestMapping("/helloWorld")
public class HelloWorldController {
@RequestMapping(value = "/hello", method = RequestMethod.GET)
public String hello(ModelMap model) {
model.addAttribute("msg", "JCG Hello World!");
System.out.println(new Date().toString() + "testPrint: in hello");
return "helloWorld";
}
@RequestMapping(value = "/displayMessage/{msg}", method = RequestMethod.GET)
public String displayMessage(@PathVariable String msg, ModelMap model) {
model.addAttribute("msg", msg);
System.out.println(new Date().toString() + "testPrint: "+msg);
return "helloWorld";
}
@RequestMapping(value = "/meow", method = RequestMethod.POST)
// @ResponseBody
public ResponseEntity<Boolean> saveData(HttpServletRequest request,
HttpServletResponse response, Model model) {
String jsonString = request.getParameter("json");
System.out.println(new Date().toString() + "testPrint: " + jsonString);
return null;
}
}
這裏是我的pom.xml:
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.example.example</groupId>
<artifactId>serverExample</artifactId>
<packaging>war</packaging>
<version>0.0.1-SNAPSHOT</version>
<name>springexample Maven Webapp</name>
<url>http://maven.apache.org</url>
<dependencies>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-core</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-webmvc</artifactId>
<version>${spring.version}</version>
</dependency>
<dependency>
<groupId>org.springframework</groupId>
<artifactId>spring-web</artifactId>
<version>3.0.5.RELEASE</version>
</dependency>
<dependency>
<groupId>javax.servlet</groupId>
<artifactId>javax.servlet-api</artifactId>
<version>3.0.1</version>
<scope>provided</scope>
</dependency>
</dependencies>
<build>
<finalName>example</finalName>
</build>
<properties>
<spring.version>4.0.2.RELEASE</spring.version>
</properties>
</project>
這裏是我的web.xml
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xmlns="http://java.sun.com/xml/ns/javaee" xmlns:web="http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd"
xsi:schemaLocation="http://java.sun.com/xml/ns/javaee
http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
id="WebApp_ID" version="3.0">
<display-name>Archetype Created Web Application</display-name>
<servlet>
<servlet-name>mvc-dispatcher</servlet-name>
<servlet-class>
org.springframework.web.servlet.DispatcherServlet
</servlet-class>
<load-on-startup>1</load-on-startup>
</servlet>
<servlet-mapping>
<servlet-name>mvc-dispatcher</servlet-name>
<url-pattern>/</url-pattern>
</servlet-mapping>
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value> /WEB-INF/mvc-dispatcher-servlet.xml </param-value>
</context-param>
<listener>
<listener-class>
org.springframework.web.context.ContextLoaderListener
</listener-class>
</listener>
</web-app>
這裏是我的MVC-調度員servlet.xml中
<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="
http://www.springframework.org/schema/beans
http://www.springframework.org/schema/beans/spring-beans-3.0.xsd
http://www.springframework.org/schema/context
http://www.springframework.org/schema/context/spring-context-3.0.xsd
http://www.springframework.org/schema/mvc
http://www.springframework.org/schema/mvc/spring-mvc-3.0.xsd">
<context:annotation-config />
<context:component-scan base-package="com.example.example.thing.*" />
<mvc:annotation-driven />
<!--
<bean
class="org.springframework.web.servlet.view.InternalResourceViewResolver">
<property name="prefix">
<value>/WEB-INF/</value>
</property>
<property name="suffix">
<value>.jsp</value>
</property>
</bean>
-->
</beans>
另外,我也行:
有一個*在封裝的結束,因爲我讀一個解決方案,說,加入*固定的問題,卻一直沒有固定的礦山,所以我還沒有拿出來。但它沒有或沒有它工作。
你可以測試你的方法使用郵差,看看你是否得到相同的結果? – Aditya