Java 使用@ResponseBody返回对象时的响应代码500

我对spring Restful编程相当陌生，因为它要求将控制器方法用作rest服务，所以我尝试以JSON格式返回一个对象，但出于某种原因，我得到的响应代码为500，日志文件中没有错误和异常

但是，如果返回类型是字符串而不是对象，则它可以成功地工作

我正在使用jackson依赖项，并在上下文文件中进行配置，假设将对象转换为json格式，并在使用@ResponseBy注释时放入响应体

//如果我返回一个对象，则响应代码为500

@RequestMapping(value = "/donorSummary", method = RequestMethod.GET,produces = "application/json")
  @PreAuthorize("hasRole('"+PermissionConstants.VIEW_DONOR+"')")
  public @ResponseBody Donor donorSummaryGenerator(HttpServletRequest request, Model model,HttpServletResponse response,
      @RequestParam(value = "donorId", required = false) Long donorId) {

       //some code here

        return donorObject; 

     }

//如果我返回字符串，则工作

 @RequestMapping(value = "/donorSummary", method = RequestMethod.GET,produces = "application/json")
      @PreAuthorize("hasRole('"+PermissionConstants.VIEW_DONOR+"')")
      public @ResponseBody StringdonorSummaryGenerator(HttpServletRequest request, Model model,HttpServletResponse response,
          @RequestParam(value = "donorId", required = false) Long donorId) {

            //some oode here 

            return donorObject.toString(); 

         }

应用上下文文件

类路径：消息
org.hibernate.dialogue.mysql5innodbdialogue
真的
没有一个
没有一个
真的
真的

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/xsd/maven-4.0.0.xsd">
    <modelVersion>4.0.0</modelVersion>
    <groupId>bsis</groupId>
    <name>BSIS</name>
    <description>(BSIS)</description>
    <artifactId>bsis</artifactId>
    <version>0.1</version>
    <packaging>war</packaging>

    <properties>
        <webapp.name>bsis</webapp.name>
        <cxf-version>2.2.10</cxf-version>
        <liquibase.propertyFile>liquibase/liquibase.properties</liquibase.propertyFile>
    </properties>

    <build>
        <finalName>${webapp.name}</finalName>
        <sourceDirectory>src</sourceDirectory>
        <testSourceDirectory>test</testSourceDirectory>

        <resources>
            <resource>
                <directory>src</directory>
                <excludes>
                    <exclude>**/*.java</exclude>
                </excludes>

            </resource>

        </resources>

        <testResources>
            <testResource>
                <directory>test</directory>
                <filtering>false</filtering>
                <includes>
                    <include>**/*.xml</include>
                    <include>**/*.sql</include>
                </includes>
            </testResource>
        </testResources>

        <plugins>

            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.12</version>
                <configuration>
                    <useFile>true</useFile>
                    <includes>
                        <include>**/*Tests.java</include>
                        <include>**/*Test.java</include>

                    </includes>
                    <excludes>
                        <exclude>**/Abstract*.java</exclude>
                    </excludes>
                    <reuseForks>false</reuseForks>
                    <forkCount>1</forkCount>
                    <junitArtifactName>junit:junit</junitArtifactName>
                    <parallel>methods</parallel>
                    <threadCount>10</threadCount>
                </configuration>
            </plugin>

            <plugin>
                <groupId>org.apache.tomcat.maven</groupId>
                <artifactId>tomcat7-maven-plugin</artifactId>
                <version>2.2</version>
                <configuration>
                    <server>tomcat</server>
                </configuration>
            </plugin>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.0</version>
                <configuration>
                    <source>1.6</source>
                    <target>1.6</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-war-plugin</artifactId>
                <version>2.4</version>
                <configuration>
                    <webXml>${basedir}/war/WEB-INF/web.xml</webXml>
                    <warSourceDirectory>${basedir}/war</warSourceDirectory>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.liquibase</groupId>
                <artifactId>liquibase-maven-plugin</artifactId>
                <version>2.0.3</version>
                <configuration>
                    <propertyFile>liquibase/liquibase.properties</propertyFile>
                </configuration>
                <executions>
                    <execution>
                        <id></id>
                        <phase>verify</phase>
                        <goals>
                            <goal>update</goal>
                        </goals>
                    </execution>
                </executions>
            </plugin>

        </plugins>
    </build>
    <dependencies>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>servlet-api</artifactId>
            <version>2.4</version>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-coyote</artifactId>
            <version>7.0.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-api</artifactId>
            <version>7.0.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-servlet-api</artifactId>
            <version>7.0.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-juli</artifactId>
            <version>7.0.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-util</artifactId>
            <version>7.0.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.apache.tomcat</groupId>
            <artifactId>tomcat-catalina</artifactId>
            <version>7.0.5</version>
            <scope>provided</scope>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-c3p0</artifactId>
            <version>4.1.6.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate.common</groupId>
            <artifactId>hibernate-commons-annotations</artifactId>
            <version>4.0.1.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-core</artifactId>
            <version>4.1.6.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-entitymanager</artifactId>
            <version>4.1.6.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-envers</artifactId>
            <version>4.1.6.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate.javax.persistence</groupId>
            <artifactId>hibernate-jpa-2.0-api</artifactId>
            <version>1.0.1.Final</version>
        </dependency>
        <dependency>
            <groupId>org.hibernate</groupId>
            <artifactId>hibernate-validator</artifactId>
            <version>4.3.0.Final</version>
        </dependency>
        <dependency>
            <groupId>org.apache.httpcomponents</groupId>
            <artifactId>httpclient</artifactId>
            <version>4.2.3</version>
        </dependency>
        <dependency>
            <groupId>joda-time</groupId>
            <artifactId>joda-time</artifactId>
            <version>2.1</version>
        </dependency>
        <dependency>
            <groupId>javax.servlet</groupId>
            <artifactId>jstl</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>log4j</groupId>
            <artifactId>log4j</artifactId>
            <version>1.2.17</version>
        </dependency>
        <dependency>
            <groupId>com.mchange</groupId>
            <artifactId>mchange-commons-java</artifactId>
            <version>0.2.3.3</version>
        </dependency>
        <dependency>
            <groupId>mysql</groupId>
            <artifactId>mysql-connector-java</artifactId>
            <version>5.1.22</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aop</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-aspects</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-beans</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context-support</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-core</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-expression</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-instrument</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-instrument-tomcat</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jdbc</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-jms</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-orm</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-oxm</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-test</artifactId>
            <version>3.2.1.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-tx</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-web</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-api</artifactId>
            <version>1.7.2</version>
        </dependency>
        <dependency>
            <groupId>org.slf4j</groupId>
            <artifactId>slf4j-simple</artifactId>
            <version>1.7.2</version>
        </dependency>
        <dependency>
            <groupId>javax.validation</groupId>
            <artifactId>validation-api</artifactId>
            <version>1.1.0.Final</version>
        </dependency>
        <dependency>
            <groupId>aopalliance</groupId>
            <artifactId>aopalliance</artifactId>
            <version>1.0</version>
        </dependency>
        <dependency>
            <groupId>antlr</groupId>
            <artifactId>antlr</artifactId>
            <version>2.7.7</version>
        </dependency>
        <dependency>
            <groupId>c3p0</groupId>
            <artifactId>c3p0</artifactId>
            <version>0.9.1.2</version>
        </dependency>
        <dependency>
            <groupId>cglib</groupId>
            <artifactId>cglib-nodep</artifactId>
            <version>2.2.2</version>
        </dependency>
        <dependency>
            <groupId>commons-beanutils</groupId>
            <artifactId>commons-beanutils</artifactId>
            <version>1.8.3</version>
        </dependency>
        <dependency>
            <groupId>commons-collections</groupId>
            <artifactId>commons-collections</artifactId>
            <version>3.2.1</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-lang3</artifactId>
            <version>3.1</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging</artifactId>
            <version>1.1.1</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging-adapters</artifactId>
            <version>1.1</version>
        </dependency>
        <dependency>
            <groupId>commons-logging</groupId>
            <artifactId>commons-logging-api</artifactId>
            <version>1.1</version>
        </dependency>
         //Jackson dependencies
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-mapper-asl</artifactId>
            <version>1.9.12</version>
        </dependency>
        <dependency>
            <groupId>org.codehaus.jackson</groupId>
            <artifactId>jackson-core-asl</artifactId>
            <version>1.9.12</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-web</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-acl</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-aspects</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-config</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-core</artifactId>
            <version>3.1.2.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-core</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.integration</groupId>
            <artifactId>spring-integration-mail</artifactId>
            <version>2.2.3.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>javax.mail</groupId>
            <artifactId>mail</artifactId>
            <version>1.4.7</version>
        </dependency>
        <dependency>
            <groupId>org.springframework.security</groupId>
            <artifactId>spring-security-taglibs</artifactId>
            <version>3.1.4.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.liquibase</groupId>
            <artifactId>liquibase-core</artifactId>
            <version>2.0.3</version>
        </dependency>   
        <dependency>    
            <groupId>turbine</groupId>  
            <artifactId>turbine</artifactId>    
            <version>2.1</version>  
        </dependency>
        <dependency>    
            <groupId>net.sf.opencsv</groupId>   
            <artifactId>opencsv</artifactId>
            <version>2.0</version>
        </dependency>
        <dependency>
            <groupId>commons-fileupload</groupId>
            <artifactId>commons-fileupload</artifactId>
            <version>1.2</version>
        </dependency>
        <dependency>
            <groupId>org.apache.commons</groupId>
            <artifactId>commons-io</artifactId>
            <version>1.3.2</version>
        </dependency>
        <dependency>
            <groupId>junit</groupId>
            <artifactId>junit-dep</artifactId>
            <version>4.8.2</version>
        </dependency>
        <dependency>
            <groupId>org.mockito</groupId>
            <artifactId>mockito-core</artifactId>
            <version>1.9.5</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>com.github.springtestdbunit</groupId>
            <artifactId>spring-test-dbunit</artifactId>
            <version>1.0.0</version>
            <scope>test</scope>
        </dependency>
        <dependency>
            <groupId>org.dbunit</groupId>
            <artifactId>dbunit</artifactId>
            <version>2.4.9</version>
            <scope>test</scope>
            <exclusions>
                <exclusion>
                    <artifactId>junit</artifactId>
                    <groupId>junit</groupId>
                </exclusion>
            </exclusions>
        </dependency>
        <dependency>
            <groupId>com.jolbox</groupId>
            <artifactId>bonecp</artifactId>
            <version>0.8.0.RELEASE</version>
        </dependency>
        <dependency>
            <groupId>org.hsqldb</groupId>
            <artifactId>hsqldb</artifactId>
            <version>2.2.8</version>
        </dependency>
        <dependency>
            <groupId>org.hsqldb</groupId>
            <artifactId>sqltool</artifactId>
            <version>2.0.0</version>
        </dependency>
        <!-- 
        <dependency>
            <groupId>org.testng</groupId>
            <artifactId>testng</artifactId>
            <version>6.8</version>
            <scope>test</scope>
        </dependency>
        -->
    </dependencies>
</project>

4.0.0
bsis
BSIS
（BSIS）
bsis
0.1
战争
bsis
2.2.10
liquibase/liquibase.properties
${webapp.name}
src
测试
src
**/*.爪哇
测试
假的
**/*.xml
**/*.sql
org.apache.maven.plugins
maven surefire插件
2.12
真的
**/*Tests.java
**/*Test.java
**/抽象*.java
假的
1.
junit:junit
方法
10
org.apache.tomcat.maven
tomcat7 maven插件
2.2
雄猫
maven编译器插件
3
1.6
1.6
org.apache.maven.plugins
maven战争插件
2.4
${basedir}/war/WEB-INF/WEB.xml
${basedir}/war
org.liquibase
liquibase maven插件
2.0.3
liquibase/liquibase.properties
验证
更新
javax.servlet
servlet api
2.4
org.apache.tomcat
雄猫郊狼
7.0.5
假如
org.apache.tomcat
TomcatAPI
7.0.5
假如
org.apache.tomcat
TomcatServletAPI
7.0.5
假如
org.apache.tomcat
雄猫朱莉
7.0.5
假如
org.apache.tomcat
tomcat util
7.0.5
假如
org.apache.tomcat
卡塔琳娜雄猫
7.0.5
假如
org.hibernate
hibernate-c3p0
4.1.6.最终版本
org.hibernate.common
hibernate commons注释
4.0.1.最终版本
org.hibernate
冬眠核心
4.1.6.最终版本
org.hibernate
休眠实体管理器
4.1.6.最终版本
org.hibernate
冬眠使者
4.1.6.最终版本
org.hibernate.javax.persistence
hibernate-jpa-2.0-api
1.0.1.最终版本
org.hibernate
休眠验证器
4.3.0.1最终版本
org.apache.httpcomponents
httpclient
4.2.3
乔达时间
乔达时间
2.1
javax.servlet
jstl
1.2
log4j
log4j
1.2.17
com.mchange
McChange commons java
0.2.3.3
mysql
mysql连接器java
5.1.22
org.springframework
春季aop
3.1.2.1发布
org.springframework
春季方面
3.1.2.1发布
org.springframework
春豆
3.1.2.1发布
org.springframework
spring上下文
3.1.2.1发布
org.springframework
spring上下文支持
3.1.2.1发布
org.springframework
弹簧芯
3.1.2.1发布
org.springframework
弹簧式
3.1.2.1发布
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-core</artifactId>
    <version>2.3.0</version>
</dependency>
<dependency>
    <groupId>com.fasterxml.jackson.core</groupId>
    <artifactId>jackson-databind</artifactId>
    <version>2.3.0</version>
</dependency>

<bean class="org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter">
    <property name="messageConverters">
        <list>
            <ref bean="jsonMessageConverter"/>
        </list>
    </property>
</bean>

<bean id="jsonMessageConverter" class="org.springframework.http.converter.json.MappingJackson2HttpMessageConverter">
</bean>

@Controller
@RequestMapping(value = "/testshare/service/location", produces = "application/json", consumes = "application/json")
public class LocationController {

    @Autowired
    private IStaticContentService staticContentService;

    /**
     * Service method to retrieve all <b>Locations</b> detail.
     * 
     * @return response LocationResponse
     * @throws ApplicationException
     */

    @RequestMapping(value = "/getAllLocations", produces = "application/json", method = RequestMethod.POST, consumes = "application/json")
    @ResponseBody
    public LocationResponse loadAllLocations(@RequestBody BaseRequest request) {
        LocationResponse response;

        try {

            response = staticContentService.getAllLocation();
            response.header = ResponseBuilder.buildHeader(true);

        } catch (ApplicationException e) {
            response = ResponseBuilder.buildError(e, new LocationResponse());
        } catch (RuntimeApplicationException e) {
            response = ResponseBuilder.buildResponse(e, new LocationResponse());
        } catch (Exception e) {
            response = ResponseBuilder.buildResponse(e, new LocationResponse());
        }

        return response;
    }

}

   import org.codehaus.jackson.annotate.JsonProperty;

public class BaseRequest {
    @JsonProperty("header")
    public Header header;
}

 <bean class="org.springframework.web.servlet.view.ContentNegotiatingViewResolver">
        <property name="order" value="1" />
        <property name="mediaTypes">
            <map>
                <entry key="json" value="application/json" />
                <entry key="file" value="multipart/form-data" />
            </map>
        </property>

        <property name="defaultViews">
            <list>
                <!-- JSON View -->
                <bean class="org.springframework.web.servlet.view.json.MappingJacksonJsonView" />
            </list>
        </property>
    </bean>