怪異「的com.vividsolutions.jts.geom.Geometry」 ClassNotResolvedException例外

Question

我執行JDOQL查詢可能看起來有點複雜：

Query q = pm.newQuery(IxlTest.class, "id == :tId && parameterGroups.get(oGroup.key).contains(tp) && oGroup.contains(opt) && opt.displayInResults"); 
q.setResult("oGroup, opt"); 
vars.append(TestTypeOptionsGroup.class.getName() + " oGroup;"); 
vars.append(TestTypeOption.class.getName() + " opt;"); 
vars.append(TestParameterGroup.class.getName() + " tpGroup;"); 
vars.append(TestParameter.class.getName() + " tp;"); 
q.declareVariables(vars.toString()); 
System.out.println(q.execute(testId)); 

沒有任何理由，我可以認爲DN會因爲我的類與幾何無關，所以需要類Geometry。這是parameterGroups映射IxlTest

這些TestParameterGroup領域

@Persistent(primaryKey = "true", valueStrategy = IdGeneratorStrategy.IDENTITY) 
private long id; 
private String name; 
private String key; 
private boolean active; 
@Column(name = "script_substitute") 
private boolean scriptSubstitute; 
@Column(name = "substitute_all") 
private boolean substituteAll; 
@Column(name = "script_value_when_checked") 
private String scriptValueWhenChecked; 
@Column(name = "script_value_when_unchecked") 
private String scriptValueWhenUnChecked; 
@Persistent(defaultFetchGroup = "true") 
@Key(types = { String.class }, mappedBy = "key", dependent = "true") 
@Value(types = { TestParameter.class }, column = "parameters_group_id", dependent = "true") 
private Map<String, TestParameter> parameters; 

這些TestParameter領域

@Persistent(primaryKey = "true", valueStrategy = IdGeneratorStrategy.IDENTITY) 
private long id; 
private String key; 
private String value; 
private boolean active; 
@Column(name = "script_substitute") 
private boolean scriptSubstitute; 
@Column(name = "substitute_all") 
private boolean substituteAll; 

我還在建立我的查詢，但只是爲了確保沒有什麼是錯了，我試着在完成整個查詢之前運行它，我得到了這個異常：

javax.jdo.JDOException: Class "com.vividsolutions.jts.geom.Geometry" was not found in the CLASSPATH. Please check your specification and your CLASSPATH. 
    at org.datanucleus.api.jdo.NucleusJDOHelper.getJDOExceptionForNucleusException(NucleusJDOHelper.java:570) 
    at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:252) 

Class "com.vividsolutions.jts.geom.Geometry" was not found in the CLASSPATH. Please check your specification and your CLASSPATH. 
org.datanucleus.exceptions.ClassNotResolvedException: Class "com.vividsolutions.jts.geom.Geometry" was not found in the CLASSPATH. Please check your specification and your CLASSPATH. 
    at org.datanucleus.JDOClassLoaderResolver.classForName(JDOClassLoaderResolver.java:245) 
    at org.datanucleus.JDOClassLoaderResolver.classForName(JDOClassLoaderResolver.java:410) 
    at org.datanucleus.store.rdbms.sql.expression.SQLExpressionFactory.invokeMethod(SQLExpressionFactory.java:382) 
    at org.datanucleus.store.rdbms.sql.expression.ObjectExpression.invoke(ObjectExpression.java:783) 
    at org.datanucleus.store.rdbms.query.QueryToSQLMapper.processInvokeExpression(QueryToSQLMapper.java:2871) 
    at org.datanucleus.query.evaluator.AbstractExpressionEvaluator.compilePrimaryExpression(AbstractExpressionEvaluator.java:200) 
    at org.datanucleus.query.evaluator.AbstractExpressionEvaluator.compileUnaryExpression(AbstractExpressionEvaluator.java:169) 
    at org.datanucleus.query.evaluator.AbstractExpressionEvaluator.compileAdditiveMultiplicativeExpression(AbstractExpressionEvaluator.java:148) 
    at org.datanucleus.query.evaluator.AbstractExpressionEvaluator.compileRelationalExpression(AbstractExpressionEvaluator.java:123) 
    at org.datanucleus.query.evaluator.AbstractExpressionEvaluator.compileOrAndExpression(AbstractExpressionEvaluator.java:65) 
    at org.datanucleus.query.evaluator.AbstractExpressionEvaluator.evaluate(AbstractExpressionEvaluator.java:46) 
    at org.datanucleus.query.expression.Expression.evaluate(Expression.java:337) 
    at org.datanucleus.query.expression.DyadicExpression.evaluate(DyadicExpression.java:70) 
    at org.datanucleus.query.expression.DyadicExpression.evaluate(DyadicExpression.java:67) 
    at org.datanucleus.query.expression.DyadicExpression.evaluate(DyadicExpression.java:67) 
    at org.datanucleus.store.rdbms.query.QueryToSQLMapper.compileFilter(QueryToSQLMapper.java:461) 
    at org.datanucleus.store.rdbms.query.QueryToSQLMapper.compile(QueryToSQLMapper.java:381) 
    at org.datanucleus.store.rdbms.query.JDOQLQuery.compileQueryFull(JDOQLQuery.java:883) 
    at org.datanucleus.store.rdbms.query.JDOQLQuery.compileInternal(JDOQLQuery.java:343) 
    at org.datanucleus.store.query.Query.executeQuery(Query.java:1747) 
    at org.datanucleus.store.query.Query.executeWithArray(Query.java:1666) 
    at org.datanucleus.api.jdo.JDOQuery.execute(JDOQuery.java:243) 

爲什麼DN認爲我需要任何基於地理的類？

Answer 1

該查詢很簡單（恕我直言）。你有

parameterGroups.get(oGroup.key).contains(tp) 

但「parameterGroups」是一個地圖，所以「parameterGroups.get（......）」是TestParameterGroup。因此，「TestParameterGroup.contains」試圖做什麼。或者「oGroup.contains（...）」也適用於此事。

如果您將該類拋入異常中，那麼您要麼引用它，要麼在類路徑中包含各種隨機jar，例如「datanucleus-spatial」。