Jackson2 ObjectMapper не отображение запроса на объект

Question

диспетчера-servlet.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" 
    xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:tx="http://www.springframework.org/schema/tx" 
    xmlns:aop="http://www.springframework.org/schema/aop" 
    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.xsd 
    http://www.springframework.org/schema/mvc 
    http://www.springframework.org/schema/mvc/spring-mvc.xsd 
    http://www.springframework.org/schema/aop 
    http://www.springframework.org/schema/aop/spring-aop-3.0.xsd 
    http://www.springframework.org/schema/tx 
    http://www.springframework.org/schema/tx/spring-tx-3.0.xsd"> 


    <context:component-scan base-package="com.demo" /> 
    <context:annotation-config /> 

    <mvc:resources mapping="/resources/**" location="/resources/" cache-period="31556926" /> 

    <mvc:resources mapping="/images/**" location="/resources/images/" cache-period="31556926" /> 

    <mvc:resources mapping="/templates/**" location="/resources/templates/" cache-period="31556926" /> 

    <mvc:annotation-driven/> 

    <tx:annotation-driven transaction-manager="txManager" /> 
    <aop:aspectj-autoproxy /> 
    <context:property-placeholder location="classpath:database.properties" /> 


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

    <bean id="dataSource" 
     class="org.springframework.jdbc.datasource.DriverManagerDataSource"> 
     <property name="driverClassName" value="${database.driver}"></property> 
     <property name="url" value="${database.url}"></property> 
     <property name="username" value="${database.user}"></property> 
     <property name="password" value="${database.password}"></property> 
    </bean> 

    <bean id="sessionFactory" 
     class="org.springframework.orm.hibernate4.LocalSessionFactoryBean"> 
     <property name="dataSource" ref="dataSource"></property> 
     <property name="annotatedClasses"> 
      <list> 
       <value>com.demo.model.CompetencyMapping</value> 

      </list> 
     </property> 
     <property name="hibernateProperties"> 
      <props> 
       <prop key="hibernate.dialect">${hibernate.dialect}</prop> 
       <prop key="hibernate.show_sql">${hibernate.show_sql}</prop> 
       <prop key="hibernate.hbm2ddl.auto">${hibernate.hbm2ddl.auto}</prop> 
      </props> 
     </property> 
    </bean> 

    <bean id="txManager" 
     class="org.springframework.orm.hibernate4.HibernateTransactionManager"> 
     <property name="sessionFactory" ref="sessionFactory"></property> 
    </bean> 


<bean 
    class="org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter"> 
    <property name="messageConverters"> 
     <list> 
      <ref bean="jsonConverter" /> 
     </list> 
    </property> 
</bean> 

<bean id="jsonConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter"> 
    <property name="supportedMediaTypes" value="application/json" /> 
</bean> 
    </beans> 

Я использовал MappingJackson2HttpMessageConverter в AnnotationMethodHandlerAdapter.

pom.xml: только что добавили com.fasterxml.jackson.core «DataBind» и «основные» ссылки

<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.demo</groupId> 
    <artifactId>pcompui</artifactId> 
    <packaging>war</packaging> 
    <version>0.0.1-SNAPSHOT</version> 
    <name>pcompui Maven Webapp</name> 
    <url>http://maven.apache.org</url> 

    <properties> 
     <spring.version>4.0.6.RELEASE</spring.version> 
     <hibernate.version>4.1.9.Final</hibernate.version> 
     <spring.security.core>3.0.5.RELEASE</spring.security.core> 
     <jackson.version>2.8.5</jackson.version> 
    </properties> 

    <dependencies> 

     <dependency> 
      <groupId>junit</groupId> 
      <artifactId>junit</artifactId> 
      <version>3.8.1</version> 
      <scope>test</scope> 
     </dependency> 

     <!-- Java Mail API --> 
     <dependency> 
      <groupId>javax.mail</groupId> 
      <artifactId>mail</artifactId> 
      <version>1.4.7</version> 
     </dependency> 


     <!-- joda time --> 
     <dependency> 
      <groupId>joda-time</groupId> 
      <artifactId>joda-time</artifactId> 
      <version>2.4</version> 
     </dependency> 

     <!-- java servlet --> 
     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>javax.servlet-api</artifactId> 
      <version>3.0.1</version> 
     </dependency> 

     <!-- jstl jar --> 
     <dependency> 
      <groupId>javax.servlet</groupId> 
      <artifactId>jstl</artifactId> 
      <version>1.2</version> 
     </dependency> 

     <!-- Spring framework --> 
     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-core</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 



     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-context-support</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-context</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-beans</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-jdbc</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-orm</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-tx</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 


     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-web</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 

     <dependency> 
      <groupId>org.springframework</groupId> 
      <artifactId>spring-webmvc</artifactId> 
      <version>${spring.version}</version> 
     </dependency> 


     <!-- AOP dependencies --> 
     <dependency> 
      <groupId>org.aspectj</groupId> 
      <artifactId>aspectjweaver</artifactId> 
      <version>1.8.1</version> 
     </dependency> 

     <!-- hibernate dependencies --> 
     <dependency> 
      <groupId>org.hibernate</groupId> 
      <artifactId>hibernate-core</artifactId> 
      <version>${hibernate.version}</version> 
     </dependency> 





     <!-- EHCache Core APIs --> 
     <!-- <dependency> <groupId>net.sf.ehcache</groupId> <artifactId>ehcache-core</artifactId> 
      <version>2.6.9</version> </dependency> --> 

     <!-- EHCache uses slf4j for logging --> 
     <!-- <dependency> <groupId>org.slf4j</groupId> <artifactId>slf4j-simple</artifactId> 
      <version>1.7.5</version> </dependency> --> 

     <!--connector jar for db --> 
     <dependency> 
      <groupId>net.sourceforge.jtds</groupId> 
      <artifactId>jtds</artifactId> 
      <version>1.3.1</version> 
     </dependency> 

     <!-- JSON jar --> 
     <dependency> 
      <groupId>com.metaparadigm</groupId> 
      <artifactId>json-rpc</artifactId> 
      <version>1.0</version> 
     </dependency> 

     <!-- Spring Security --> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-core</artifactId> 
      <version>${spring.security.core}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-web</artifactId> 
      <version>${spring.security.core}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-config</artifactId> 
      <version>${spring.security.core}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 
     <dependency> 
      <groupId>org.springframework.security</groupId> 
      <artifactId>spring-security-taglibs</artifactId> 
      <version>${spring.security.core}</version> 
      <type>jar</type> 
      <scope>compile</scope> 
     </dependency> 



     <!-- for logging --> 
     <dependency> 
      <groupId>log4j</groupId> 
      <artifactId>log4j</artifactId> 
      <version>1.2.17</version> 
     </dependency> 


     <!-- mysql dependency --> 
     <dependency> 
      <groupId>mysql</groupId> 
      <artifactId>mysql-connector-java</artifactId> 
      <version>5.1.17</version> 
     </dependency> 

     <dependency> 
      <groupId>org.apache.poi</groupId> 
      <artifactId>poi</artifactId> 
      <version>3.15</version> 
     </dependency> 

     <!-- JACKSON Dependency -->  
     <dependency> 
      <groupId>com.fasterxml.jackson.core</groupId> 
      <artifactId>jackson-core</artifactId> 
      <version>${jackson.version}</version> 
     </dependency> 


     <dependency> 
      <groupId>com.fasterxml.jackson.core</groupId> 
      <artifactId>jackson-databind</artifactId> 
      <version>${jackson.version}</version> 
     </dependency> 


    </dependencies> 
    <build> 
     <finalName>pcompui</finalName> 
     <plugins> 
      <plugin> 
       <groupId>org.apache.maven.plugins</groupId> 
       <artifactId>maven-compiler-plugin</artifactId> 
       <version>3.1</version> 
       <configuration> 
        <source>1.7</source> 
        <target>1.7</target> 
       </configuration> 
      </plugin> 
     </plugins> 
    </build> 
</project> 

Теперь, когда запрос отправить с JSON, метод контроллера не получает вызова. Если я удалю параметр метода «@RequestBody DateRequest systemDate», метод будет вызван с консолью, показывающей инструкции.

Контроллер используется @RestController

//headers={"Accept=application/json", "Content-Type=application/json"} 
    @RequestMapping(value="/retrieveStartandEndDates",method=RequestMethod.POST,consumes={"application/json"} , headers={"Accept=application/json", "Content-Type=application/json"}) 
    public RetrieveStartEndDates retrieveStartandEndDates(@RequestBody DateRequest systemDate){ 
     //RetrieveStartEndDates systemDate = new RetrieveStartEndDates(); 
     System.out.println("inside controller:::"+systemDate.getSystemDate()); 
     RetrieveStartEndDates obj = new RetrieveStartEndDates(); 
     obj = schemeService.getStartAndEndDates(systemDate.getSystemDate()); 
     System.out.println(obj.toString()); 
     return obj; 
    } 

DateRequest является простой объект DTO

package com.demo.vo; 

public class DateRequest { 

    private String SystemDate; 
    private String dest; 
    public String getSystemDate() { 
     return SystemDate; 
    } 
    public void setSystemDate(String systemDate) { 
     this.SystemDate = systemDate; 
    } 
    public String getDest() { 
     return dest; 
    } 
    public void setDest(String dest) { 
     this.dest = dest; 
    } 

} 

JSON Запрос

{SystemDate: "12/23/2016", Назначение: «retrieveStartandEndDates "}

Не уверен, что я пропустил здесь. Любые предложения/помощь приветствуются.

Answer 1

Попробуйте использовать org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter вместо org.springframework.web.servlet.mvc.annotation.AnnotationMethodHandlerAdapter в dispatcher-servlet.xml.