对 bean 的 Solr 查询 - java.lang.IllegalArgumentException
Solr query to beans - java.lang.IllegalArgumentException
我正在将 POJO 插入 Solr，现在正尝试查询并反序列化回 POJO。在尝试实例化 POJO (TwitterStatusModel) 时它抛出 IllegalArgumentException。
据我了解，由于我使用字符串将日期插入 Solr（插入到 TrieDateField 中），因此我应该能够基于相同的数据类型提取和重新实例化，但 Solr 是否希望设置statusCreatedDate 作为 java.util.Date？还是字符串？
如有任何帮助，我们将不胜感激。
注意：在插入 Solr 之前，我正在正确格式化日期字符串（根据 TrieDateField 要求）。
注意：弹出此错误时，两个 setter（一个接受 java.util.Date，另一个接受 String）都被命名为 setStatusCreatedDate。我后来重命名了一个以尝试缩小问题范围。
下面是我的架构：
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="MySolrModel" version="1.5">
<fieldType name="double" class="solr.TrieDoubleField" />
<fieldType name="long" class="solr.TrieLongField" positionIncrementGap="0"/>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" />
<fieldType name="text_en" class="solr.TextField" >
<analyzer type="index">
<tokenizer class="solr.ClassicTokenizerFactory" />
<filter class="solr.StopFilterFactory" ignoreCase="true" words="lang/stopwords_en.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="date" class="solr.TrieDateField"/>
<fieldType name="int" class="solr.TrieIntField" />
<fieldType name="boolean" class="solr.BoolField" />
<uniqueKey>id</uniqueKey>
<defaultSearchField>statusText</defaultSearchField>
<field name="_version_" type="long" indexed="true" stored="true"/>
<field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" />
<field name="statusText" type="text_en" indexed="true" stored="true" required="true" multiValued="false" />
<field name="userName" type="string" indexed="true" stored="true" required="true" multiValued="false" />
<field name="placeCountry" type="string" indexed="true" stored="true" required="false" multiValued="false" />
<field name="statusContributorsList" type="long" indexed="false" stored="true" required="false" multiValued="true" />
<field name="statusCreatedDate" type="date" indexed="true" stored="true" required="true" multiValued="false" />
<dynamicField name="*Lat" type="double" indexed="true" stored="true" required="false" multiValued="false" />
<dynamicField name="*Lon" type="double" indexed="true" stored="true" required="false" multiValued="false" />
<dynamicField name="*Int" type="int" indexed="false" stored="true" required="false" multiValued="false" />
<dynamicField name="*Boolean" type="boolean" indexed="false" stored="true" required="false" multiValued="false" />
<dynamicField name="*Long" type="long" indexed="false" stored="true" required="false" multiValued="false" />
<dynamicField name="*String" type="string" indexed="false" stored="true" required="false" multiValued="false" />
</schema>
我认为这是 POJO 的相关部分。如您所见，我有一个 setter 接受字符串，另一个接受日期。我试过对它们一一进行评论，只是想看看是否有一个错误是在干扰，而没有这样的运气。此外，我在出现此错误后插入了@JsonSetter 和@JsonIgnoreProperties 注释。
public class TwitterStatusModel {
@Field("statusCreatedDate")
@JsonProperty
private String statusCreatedDate = "";
public String getStatusCreatedDate() {
return this.statusCreatedDate;
}
@JsonSetter
public void setStatusCreatedDate(String statusCreatedDate) {
this.statusCreatedDate = statusCreatedDate;
}
// @JsonIgnoreProperties
// public void setStatusCreatedDateFromDate(Date created) {
// this.statusCreatedDate = (DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.S'Z'")).print(new DateTime(created));
// }
这是将 POJO 插入 Solr 的代码，然后是从 Solr 中提取它们的代码。
public void insertDocumentList(List<TwitterStatusModel> tweetList) {
try {
server.addBeans(tweetList);
} catch (IOException ioe) {
TwitterCollectionScheduleBean.log.error(ioe);
} catch (SolrServerException sse) {
TwitterCollectionScheduleBean.log.error(sse);
}
}
public void writeRecent() {
SolrQuery query = new SolrQuery();
query.setQuery("*:*");
List<TwitterStatusModel> list = query(query).getBeans(TwitterStatusModel.class);
}
public QueryResponse query(SolrQuery query) {
QueryResponse resp = null;
try {
resp = server.query(query);
} catch (SolrServerException sse) {
TwitterCollectionScheduleBean.log.error(sse);
}
return resp;
}
最后，下面是例外。我尽量减少它...
01:26:52,995 ERROR [org.jboss.as.ejb3] (ServerService Thread Pool -- 101) javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
01:26:52,996 ERROR [org.jboss.as.ejb3.invocation] (ServerService Thread Pool -- 101) JBAS014134: EJB Invocation failed on component JsonSerializer for method public void com.mycompany.MyProject.json.JsonSerializer.writeRecent(): javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:163) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:253) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:342) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:239) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:95) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory.processInvocation(ShutDownInterceptorFactory.java:64) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:326)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:448)
at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:326)
at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:185)
at org.jboss.as.ee.component.ViewDescription.processInvocation(ViewDescription.java:182)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:73)
at com.mycompany.MyProject.json.JsonSerializer$$$view86.writeRecent(Unknown Source) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_75]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_75]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_75]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_75]
at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:414) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:127) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:56) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.InjectionPointPropagatingEnterpriseTargetBeanInstance.invoke(InjectionPointPropagatingEnterpriseTargetBeanInstance.java:65) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at com.mycompany.MyProject.json.JsonSerializer$Proxy$_$$_Weld$EnterpriseProxy$.writeRecent(Unknown Source) [classes:]
at com.mycompany.MyProject.scheduler.TwitterCollectionScheduleBean.init(TwitterCollectionScheduleBean.java:86) [classes:]
Caused by: org.apache.solr.client.solrj.beans.BindingException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:68) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBeans(DocumentObjectBinder.java:47) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.response.QueryResponse.getBeans(QueryResponse.java:536) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at com.mycompany.MyProject.json.JsonSerializer.writeRecent(JsonSerializer.java:36) [classes:]
Caused by: org.apache.solr.client.solrj.beans.BindingException: Exception while setting value : Tue Feb 17 10:48:39 EST 2015 on private java.lang.String com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:370) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.inject(DocumentObjectBinder.java:353) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:64) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
... 140 more
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate to java.util.Date
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) [rt.jar:1.7.0_75]
at java.lang.reflect.Field.set(Field.java:741) [rt.jar:1.7.0_75]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:364) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
... 142 more
01:26:53,011 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 101) MSC000001: Failed to start service jboss.deployment.unit."MyProject-1.0-SNAPSHOT.war".component.TwitterCollectionScheduleBean.START: org.jboss.msc.service.StartException in service jboss.deployment.unit."MyProject-1.0-SNAPSHOT.war".component.TwitterCollectionScheduleBean.START: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
... 6 more
Caused by: javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at com.mycompany.MyProject.json.JsonSerializer$Proxy$_$$_Weld$EnterpriseProxy$.writeRecent(Unknown Source)
at com.mycompany.MyProject.scheduler.TwitterCollectionScheduleBean.init(TwitterCollectionScheduleBean.java:86)
... 11 more
Caused by: org.apache.solr.client.solrj.beans.BindingException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:68)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBeans(DocumentObjectBinder.java:47)
at org.apache.solr.client.solrj.response.QueryResponse.getBeans(QueryResponse.java:536)
at com.mycompany.MyProject.json.JsonSerializer.writeRecent(JsonSerializer.java:36)
... 101 more
Caused by: org.apache.solr.client.solrj.beans.BindingException: Exception while setting value : Tue Feb 17 10:48:39 EST 2015 on private java.lang.String com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:370)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.inject(DocumentObjectBinder.java:353)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:64)
... 140 more
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate to java.util.Date
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) [rt.jar:1.7.0_75]
at java.lang.reflect.Field.set(Field.java:741) [rt.jar:1.7.0_75]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:364)
... 142 more
01:26:53,029 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) JBAS014613: Operation ("full-replace-deployment") failed - address: ([]) - failure description: {"JBAS014671: Failed services" => {"jboss.deployment.unit.\"MyProject-1.0-SNAPSHOT.war\".component.TwitterCollectionScheduleBean.START" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"MyProject-1.0-SNAPSHOT.war\".component.TwitterCollectionScheduleBean.START: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
Caused by: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
Caused by: javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
Caused by: org.apache.solr.client.solrj.beans.BindingException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
Caused by: org.apache.solr.client.solrj.beans.BindingException: Exception while setting value : Tue Feb 17 10:48:39 EST 2015 on private java.lang.String com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate to java.util.Date"}}
似乎即使我在 setter 方法中保留了类型转换：
public void setStatusCreatedDateFromDate(Date created) {
this.statusCreatedDate = (DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.S'Z'")).print(new DateTime(created));
}
Solr 不看它能提供的类型，它看POJO 的字段的类型。我不认为 Solr 会关心实际字段是什么类型，只要它获取并可以使用正确的类型进行设置，但它确实如此。 Solr 希望 FIELD 是正确的类型。以下是解决方案：
@Field("statusCreatedDate")
@JsonProperty
private Date statusCreatedDate = new Date();
public void setStatusCreatedDate(Date created) {
this.statusCreatedDate = created;
}
我不知道是否有解决方法，但解决方法是简单地更改 POJO。有趣的是，有些记录被索引，其中 statusCreatedDate 为字符串格式，其他记录为长格式，迫使我转储和重构数据，更正 POJO（使用 java.util.Date class）并开始结束了
顺便说一句，我发现虽然 Solr 允许将 POJO long 类型插入到 Solr 的 String 类型中，但它不会反序列化回 POJO (String --> long)。
对于阅读本文的任何人，请确保您的 POJO 中的类型与 schema.xml 类型完全一致。
我正在将 POJO 插入 Solr，现在正尝试查询并反序列化回 POJO。在尝试实例化 POJO (TwitterStatusModel) 时它抛出 IllegalArgumentException。
据我了解，由于我使用字符串将日期插入 Solr（插入到 TrieDateField 中），因此我应该能够基于相同的数据类型提取和重新实例化，但 Solr 是否希望设置statusCreatedDate 作为 java.util.Date？还是字符串？
如有任何帮助，我们将不胜感激。
注意：在插入 Solr 之前，我正在正确格式化日期字符串（根据 TrieDateField 要求）。
注意：弹出此错误时，两个 setter（一个接受 java.util.Date，另一个接受 String）都被命名为 setStatusCreatedDate。我后来重命名了一个以尝试缩小问题范围。
下面是我的架构：
<?xml version="1.0" encoding="UTF-8" ?>
<schema name="MySolrModel" version="1.5">
<fieldType name="double" class="solr.TrieDoubleField" />
<fieldType name="long" class="solr.TrieLongField" positionIncrementGap="0"/>
<fieldType name="string" class="solr.StrField" sortMissingLast="true" />
<fieldType name="text_en" class="solr.TextField" >
<analyzer type="index">
<tokenizer class="solr.ClassicTokenizerFactory" />
<filter class="solr.StopFilterFactory" ignoreCase="true" words="lang/stopwords_en.txt"/>
<filter class="solr.LowerCaseFilterFactory"/>
</analyzer>
</fieldType>
<fieldType name="date" class="solr.TrieDateField"/>
<fieldType name="int" class="solr.TrieIntField" />
<fieldType name="boolean" class="solr.BoolField" />
<uniqueKey>id</uniqueKey>
<defaultSearchField>statusText</defaultSearchField>
<field name="_version_" type="long" indexed="true" stored="true"/>
<field name="id" type="string" indexed="true" stored="true" required="true" multiValued="false" />
<field name="statusText" type="text_en" indexed="true" stored="true" required="true" multiValued="false" />
<field name="userName" type="string" indexed="true" stored="true" required="true" multiValued="false" />
<field name="placeCountry" type="string" indexed="true" stored="true" required="false" multiValued="false" />
<field name="statusContributorsList" type="long" indexed="false" stored="true" required="false" multiValued="true" />
<field name="statusCreatedDate" type="date" indexed="true" stored="true" required="true" multiValued="false" />
<dynamicField name="*Lat" type="double" indexed="true" stored="true" required="false" multiValued="false" />
<dynamicField name="*Lon" type="double" indexed="true" stored="true" required="false" multiValued="false" />
<dynamicField name="*Int" type="int" indexed="false" stored="true" required="false" multiValued="false" />
<dynamicField name="*Boolean" type="boolean" indexed="false" stored="true" required="false" multiValued="false" />
<dynamicField name="*Long" type="long" indexed="false" stored="true" required="false" multiValued="false" />
<dynamicField name="*String" type="string" indexed="false" stored="true" required="false" multiValued="false" />
</schema>
我认为这是 POJO 的相关部分。如您所见，我有一个 setter 接受字符串，另一个接受日期。我试过对它们一一进行评论，只是想看看是否有一个错误是在干扰，而没有这样的运气。此外，我在出现此错误后插入了@JsonSetter 和@JsonIgnoreProperties 注释。
public class TwitterStatusModel {
@Field("statusCreatedDate")
@JsonProperty
private String statusCreatedDate = "";
public String getStatusCreatedDate() {
return this.statusCreatedDate;
}
@JsonSetter
public void setStatusCreatedDate(String statusCreatedDate) {
this.statusCreatedDate = statusCreatedDate;
}
// @JsonIgnoreProperties
// public void setStatusCreatedDateFromDate(Date created) {
// this.statusCreatedDate = (DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.S'Z'")).print(new DateTime(created));
// }
这是将 POJO 插入 Solr 的代码，然后是从 Solr 中提取它们的代码。
public void insertDocumentList(List<TwitterStatusModel> tweetList) {
try {
server.addBeans(tweetList);
} catch (IOException ioe) {
TwitterCollectionScheduleBean.log.error(ioe);
} catch (SolrServerException sse) {
TwitterCollectionScheduleBean.log.error(sse);
}
}
public void writeRecent() {
SolrQuery query = new SolrQuery();
query.setQuery("*:*");
List<TwitterStatusModel> list = query(query).getBeans(TwitterStatusModel.class);
}
public QueryResponse query(SolrQuery query) {
QueryResponse resp = null;
try {
resp = server.query(query);
} catch (SolrServerException sse) {
TwitterCollectionScheduleBean.log.error(sse);
}
return resp;
}
最后，下面是例外。我尽量减少它...
01:26:52,995 ERROR [org.jboss.as.ejb3] (ServerService Thread Pool -- 101) javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
01:26:52,996 ERROR [org.jboss.as.ejb3.invocation] (ServerService Thread Pool -- 101) JBAS014134: EJB Invocation failed on component JsonSerializer for method public void com.mycompany.MyProject.json.JsonSerializer.writeRecent(): javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at org.jboss.as.ejb3.tx.CMTTxInterceptor.handleInCallerTx(CMTTxInterceptor.java:163) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.invokeInCallerTx(CMTTxInterceptor.java:253) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.required(CMTTxInterceptor.java:342) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.as.ejb3.tx.CMTTxInterceptor.processInvocation(CMTTxInterceptor.java:239) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.CurrentInvocationContextInterceptor.processInvocation(CurrentInvocationContextInterceptor.java:41) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.invocationmetrics.WaitTimeInterceptor.processInvocation(WaitTimeInterceptor.java:43) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.security.SecurityContextInterceptor.processInvocation(SecurityContextInterceptor.java:95) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.ShutDownInterceptorFactory.processInvocation(ShutDownInterceptorFactory.java:64) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.LoggingInterceptor.processInvocation(LoggingInterceptor.java:59) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ee.component.NamespaceContextInterceptor.processInvocation(NamespaceContextInterceptor.java:50)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.as.ejb3.component.interceptors.AdditionalSetupInterceptor.processInvocation(AdditionalSetupInterceptor.java:55) [wildfly-ejb3-8.2.0.Final.jar:8.2.0.Final]
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.ContextClassLoaderInterceptor.processInvocation(ContextClassLoaderInterceptor.java:64)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:326)
at org.wildfly.security.manager.WildFlySecurityManager.doChecked(WildFlySecurityManager.java:448)
at org.jboss.invocation.AccessCheckingInterceptor.processInvocation(AccessCheckingInterceptor.java:61)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.InterceptorContext.run(InterceptorContext.java:326)
at org.jboss.invocation.PrivilegedWithCombinerInterceptor.processInvocation(PrivilegedWithCombinerInterceptor.java:80)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
at org.jboss.as.ee.component.ViewService$View.invoke(ViewService.java:185)
at org.jboss.as.ee.component.ViewDescription.processInvocation(ViewDescription.java:182)
at org.jboss.invocation.InterceptorContext.proceed(InterceptorContext.java:309)
at org.jboss.invocation.ChainedInterceptor.processInvocation(ChainedInterceptor.java:61)
at org.jboss.as.ee.component.ProxyInvocationHandler.invoke(ProxyInvocationHandler.java:73)
at com.mycompany.MyProject.json.JsonSerializer$$$view86.writeRecent(Unknown Source) [classes:]
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) [rt.jar:1.7.0_75]
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57) [rt.jar:1.7.0_75]
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) [rt.jar:1.7.0_75]
at java.lang.reflect.Method.invoke(Method.java:606) [rt.jar:1.7.0_75]
at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:414) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke(EnterpriseBeanProxyMethodHandler.java:127) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.EnterpriseTargetBeanInstance.invoke(EnterpriseTargetBeanInstance.java:56) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.InjectionPointPropagatingEnterpriseTargetBeanInstance.invoke(InjectionPointPropagatingEnterpriseTargetBeanInstance.java:65) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at org.jboss.weld.bean.proxy.ProxyMethodHandler.invoke(ProxyMethodHandler.java:100) [weld-core-impl-2.2.6.Final.jar:2014-10-03 10:05]
at com.mycompany.MyProject.json.JsonSerializer$Proxy$_$$_Weld$EnterpriseProxy$.writeRecent(Unknown Source) [classes:]
at com.mycompany.MyProject.scheduler.TwitterCollectionScheduleBean.init(TwitterCollectionScheduleBean.java:86) [classes:]
Caused by: org.apache.solr.client.solrj.beans.BindingException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:68) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBeans(DocumentObjectBinder.java:47) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.response.QueryResponse.getBeans(QueryResponse.java:536) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at com.mycompany.MyProject.json.JsonSerializer.writeRecent(JsonSerializer.java:36) [classes:]
Caused by: org.apache.solr.client.solrj.beans.BindingException: Exception while setting value : Tue Feb 17 10:48:39 EST 2015 on private java.lang.String com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:370) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.inject(DocumentObjectBinder.java:353) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:64) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
... 140 more
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate to java.util.Date
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) [rt.jar:1.7.0_75]
at java.lang.reflect.Field.set(Field.java:741) [rt.jar:1.7.0_75]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:364) [solr-solrj-4.10.3.jar:4.10.3 1644336 - mark - 2014-12-10 00:35:46]
... 142 more
01:26:53,011 ERROR [org.jboss.msc.service.fail] (ServerService Thread Pool -- 101) MSC000001: Failed to start service jboss.deployment.unit."MyProject-1.0-SNAPSHOT.war".component.TwitterCollectionScheduleBean.START: org.jboss.msc.service.StartException in service jboss.deployment.unit."MyProject-1.0-SNAPSHOT.war".component.TwitterCollectionScheduleBean.START: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
... 6 more
Caused by: javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at com.mycompany.MyProject.json.JsonSerializer$Proxy$_$$_Weld$EnterpriseProxy$.writeRecent(Unknown Source)
at com.mycompany.MyProject.scheduler.TwitterCollectionScheduleBean.init(TwitterCollectionScheduleBean.java:86)
... 11 more
Caused by: org.apache.solr.client.solrj.beans.BindingException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:68)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBeans(DocumentObjectBinder.java:47)
at org.apache.solr.client.solrj.response.QueryResponse.getBeans(QueryResponse.java:536)
at com.mycompany.MyProject.json.JsonSerializer.writeRecent(JsonSerializer.java:36)
... 101 more
Caused by: org.apache.solr.client.solrj.beans.BindingException: Exception while setting value : Tue Feb 17 10:48:39 EST 2015 on private java.lang.String com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:370)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.inject(DocumentObjectBinder.java:353)
at org.apache.solr.client.solrj.beans.DocumentObjectBinder.getBean(DocumentObjectBinder.java:64)
... 140 more
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate to java.util.Date
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:164) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(UnsafeFieldAccessorImpl.java:168) [rt.jar:1.7.0_75]
at sun.reflect.UnsafeObjectFieldAccessorImpl.set(UnsafeObjectFieldAccessorImpl.java:81) [rt.jar:1.7.0_75]
at java.lang.reflect.Field.set(Field.java:741) [rt.jar:1.7.0_75]
at org.apache.solr.client.solrj.beans.DocumentObjectBinder$DocField.set(DocumentObjectBinder.java:364)
... 142 more
01:26:53,029 ERROR [org.jboss.as.controller.management-operation] (DeploymentScanner-threads - 2) JBAS014613: Operation ("full-replace-deployment") failed - address: ([]) - failure description: {"JBAS014671: Failed services" => {"jboss.deployment.unit.\"MyProject-1.0-SNAPSHOT.war\".component.TwitterCollectionScheduleBean.START" => "org.jboss.msc.service.StartException in service jboss.deployment.unit.\"MyProject-1.0-SNAPSHOT.war\".component.TwitterCollectionScheduleBean.START: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
Caused by: java.lang.IllegalStateException: JBAS011048: Failed to construct component instance
Caused by: javax.ejb.EJBTransactionRolledbackException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
Caused by: org.apache.solr.client.solrj.beans.BindingException: Could not instantiate object of class com.mycompany.MyProject.twitter.util.TwitterStatusModel
Caused by: org.apache.solr.client.solrj.beans.BindingException: Exception while setting value : Tue Feb 17 10:48:39 EST 2015 on private java.lang.String com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate
Caused by: java.lang.IllegalArgumentException: Can not set java.lang.String field com.mycompany.MyProject.twitter.util.TwitterStatusModel.statusCreatedDate to java.util.Date"}}
似乎即使我在 setter 方法中保留了类型转换：
public void setStatusCreatedDateFromDate(Date created) {
this.statusCreatedDate = (DateTimeFormat.forPattern("yyyy-MM-dd'T'HH:mm:ss.S'Z'")).print(new DateTime(created));
}
Solr 不看它能提供的类型，它看POJO 的字段的类型。我不认为 Solr 会关心实际字段是什么类型，只要它获取并可以使用正确的类型进行设置，但它确实如此。 Solr 希望 FIELD 是正确的类型。以下是解决方案：
@Field("statusCreatedDate")
@JsonProperty
private Date statusCreatedDate = new Date();
public void setStatusCreatedDate(Date created) {
this.statusCreatedDate = created;
}
我不知道是否有解决方法，但解决方法是简单地更改 POJO。有趣的是，有些记录被索引，其中 statusCreatedDate 为字符串格式，其他记录为长格式，迫使我转储和重构数据，更正 POJO（使用 java.util.Date class）并开始结束了
顺便说一句，我发现虽然 Solr 允许将 POJO long 类型插入到 Solr 的 String 类型中，但它不会反序列化回 POJO (String --> long)。
对于阅读本文的任何人，请确保您的 POJO 中的类型与 schema.xml 类型完全一致。