java - Spring:Tomcat 响应中的 HTTP 状态 406

Question

我在 Spring webapp 上遇到来自 Tomcat 服务器(v. 8，也尝试过 7)的响应中的 HTTP Status 406 问题。响应的描述是:“根据请求“接受” header ，此请求标识的资源只能生成具有 Not Acceptable 特征的响应。”

index.jsp 显示正确，但 results.jsp 未按预期显示。

我已经尝试了堆栈中的所有解决方案，包括导入 fasterxml、jackson 等。你能帮帮我吗？

这是我的基本 Controller :

import org.slf4j.LoggerFactory;
import org.springframework.stereotype.Controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.bind.annotation.ResponseBody;
import org.springframework.web.servlet.ModelAndView;

import backEnd.Core;

@Controller
public class BaseController {

private static final String VIEW_INDEX = "index";   
private static final org.slf4j.Logger logger = LoggerFactory.getLogger(BaseController.class);

@RequestMapping(value = "/", method = RequestMethod.GET)
public String welcome() {
    return VIEW_INDEX;
}

@RequestMapping(value = "/calculate", headers="Accept=*/*", method = RequestMethod.GET)
public @ResponseBody ModelAndView calculate(@RequestParam(value = "origin") String origin,
        @RequestParam(value = "destination") String destination,
        @RequestParam(value = "numberOfPax") String numberOfPax,
        @RequestParam(value = "fuelPrice") String fuelPrice,
        @RequestParam(value = "consumption") String consumption) {
    String cost = null;
    String distanceWithRoute = null;
    if (origin != null) {
        if (origin.contains(" ")) {
            origin = origin.replace(" ", "+");
        }
        if (destination != null) {
            if (destination.contains(" ")) {
                destination = destination.replace(" ", "+");
            }
            // response.reset();
            try {
                distanceWithRoute = Core.getDistance(origin, destination);
                cost = String.valueOf(Core.getCost(numberOfPax, consumption, fuelPrice));                   
                logger.info("ReqOri: " + destination);
                logger.info("ReqDest: " + destination);
                logger.info("Response: " + distanceWithRoute + cost);
            } catch (Exception e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
            }
        }
    }   
    ModelAndView resultsView = new ModelAndView();
    resultsView.setViewName("calculate");
    resultsView.addObject("distanceWithRoute", distanceWithRoute);
    resultsView.addObject("costAttribute", cost);
    return resultsView;
}
}

网络.xml:

<?xml version="1.0" encoding="ISO-8859-1"?>
<web-app xmlns="http://java.sun.com/xml/ns/javaee"
  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
  xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd"
  version="3.0">

<display-name>Trip cost calculator</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>

调度员:

<beans xmlns="http://www.springframework.org/schema/beans"
xmlns:context="http://www.springframework.org/schema/context"
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.xsd
    http://www.springframework.org/schema/context 
    http://www.springframework.org/schema/context/spring-context.xsd">

<context:component-scan base-package="com.kmajewski.controller" />

<bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix">
        <value>/WEB-INF/pages/</value>
    </property>
    <property name="suffix">
        <value>.jsp</value>
    </property>
</bean>
</beans>

计算.jsp:

<html>
<head>
    <meta http-equiv='Content-Type'  content='text/html; charset=UTF-8'>
</head>
<body>
    <h1>Trip cost calculator</h1><br>
    ${distanceWithRoute} <br>
    Price per passenger: <b> ${costAttribute} </b>      
</body>
</html>

和index.jsp:

<%@taglib uri="http://www.springframework.org/tags/form" prefix="form"%>
<html>
<head>
    <meta http-equiv='Content-Type'  content='text/html; charset=UTF-8'>
</head>
<body>
    <form:form method="GET" action="calculate">
            Origin: <input type='text' name='origin'><br>
            Destination: <input type='text' name='destination'><br>
            Number of passangers: <input type='text' name='numberOfPax'><br>
            Fuel price: <input type='text' name='fuelPrice'><br>
            Avg. fuel consumption: (L/100km): <input type='text' name='consumption'><br><br>
            <input type='submit' value='Calculate'>
            </form:form>
</body>
</html>

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.kmajewski</groupId>
 <artifactId>tripCalculator</artifactId>
 <packaging>war</packaging>
 <version>1.0-SNAPSHOT</version>
 <name>tripCalculator Maven Webapp</name>
<url>http://maven.apache.org</url>
 <dependencies>
<dependency>
    <groupId>junit</groupId>
    <artifactId>junit</artifactId>
    <version>3.8.1</version>
    <scope>test</scope>
</dependency>
<dependency>
    <groupId>org.json</groupId>
    <artifactId>json</artifactId>
    <version>20150729</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-core</artifactId>
    <version>4.2.2.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-web</artifactId>
    <version>4.2.2.RELEASE</version>
</dependency>
<dependency>
    <groupId>org.springframework</groupId>
    <artifactId>spring-webmvc</artifactId>
    <version>4.2.2.RELEASE</version>
</dependency>
<dependency>
    <groupId>ch.qos.logback</groupId>
    <artifactId>logback-classic</artifactId>
    <version>1.1.3</version>
</dependency>
<dependency>
    <groupId>org.slf4j</groupId>
    <artifactId>jcl-over-slf4j</artifactId>
    <version>1.7.12</version>
</dependency>
<dependency>
    <groupId>jstl</groupId>
    <artifactId>jstl</artifactId>
    <version>1.2</version>
</dependency>
<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-mapper-asl</artifactId>
    <version>1.9.13</version>
</dependency>   
<dependency>
    <groupId>org.codehaus.jackson</groupId>
    <artifactId>jackson-core-asl</artifactId>
    <version>1.9.13</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.6.3</version>
</dependency>   
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.6.3</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-annotations</artifactId>
    <version>2.6.3</version>
</dependency>           
</dependencies>
<build>
<finalName>tripCalculator</finalName>
<plugins>
       <!-- Eclipse project -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-eclipse-plugin</artifactId>
        <version>2.10</version>
        <configuration>
               <!-- Always download and attach dependencies source code -->
            <downloadSources>true</downloadSources>
            <downloadJavadocs>false</downloadJavadocs>
            <!-- Avoid type mvn eclipse:eclipse -Dwtpversion=2.0 -->
            <wtpversion>2.0</wtpversion>
        </configuration>
      </plugin>
      <!-- Set JDK Compiler Level -->
      <plugin>
        <groupId>org.apache.maven.plugins</groupId>
        <artifactId>maven-compiler-plugin</artifactId>
        <version>3.3</version>
        <configuration>
            <source>1.8</source>
            <target>1.8</target>
        </configuration>
      </plugin>
      <!-- For Maven Tomcat Plugin -->
      <plugin>
        <groupId>org.apache.tomcat.maven</groupId>
        <artifactId>tomcat7-maven-plugin</artifactId>
        <version>2.2</version>
        <configuration>
            <path>/tripCalculator</path>
        </configuration>
      </plugin>
</plugins>
</build>
</project>

Answer 1

感谢Fran Montero我有这个工作。真的很感激，伙计。谢谢。

这是我的调度员的样子:

<beans xmlns="http://www.springframework.org/schema/beans"  
 xmlns:mvc="http://www.springframework.org/schema/mvc"
 xmlns:context="http://www.springframework.org/schema/context"
 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.xsd
    http://www.springframework.org/schema/context         
    http://www.springframework.org/schema/context/spring-context.xsd
    http://www.springframework.org/schema/mvc
    http://www.springframework.org/schema/mvc/spring-mvc.xsd">

<context:component-scan base-package="com.kmajewski.controller" />
<mvc:annotation-driven />


<bean
    class="org.springframework.web.servlet.view.InternalResourceViewResolver">
    <property name="prefix">
        <value>/WEB-INF/pages/</value>
    </property>
    <property name="suffix">
        <value>.jsp</value>
    </property>
</bean>