保存到 json postgres：java.lang.UnsupportedOperationException
Save to json postgres : java.lang.UnsupportedOperationException
我想将 json 数据保存到数据库，但首先我需要解析 JSON 数据。我做了矢量类型解析器，但我无法协调。
示例：geoJson
{"coordinates":[-48.287108838558,-15.679686963558],"type":"Point"}
我保存为矢量类型。
我的 Geojson 解析代码 :
public class GeoJSON{
private String type;
private String data;
public String getType() {return type;}
public void setType(String type) {this.type = type;}
public String getData() {return data;}
public void setData(String data) { this.data = data; }
public GeoJSON() {
}
public GeoJSON(JSONObject json) {
parse(json);
}
public GeoJSON parse(JSONObject json) {
StringWriter out = new StringWriter();
json.write(out);
this.data = out.toString();
this.type = json.getString("type");
try {
out.close();
} catch (IOException ex) {
System.out.println(ex.getMessage());
throw new RuntimeException(ex);
}
return this;
}
在插入方法中的 Mycontroller 之后：
public boolean insert(GeoJSON item)
{
SavegeojsonEntity theEvent = new SavegeojsonEntity();
boolean success;
try {
String vectorType = item.getType();
EntityManager em = HibernateSpatialJPA.createEntityManager();
em.getTransaction().begin();
theEvent.setVectorType(vectorType);
if(vectorType.equals("Point"))
{
Geometry geom = wktToGeometry(item.getData());
System.out.println("geomPo "+geom);
theEvent.setGeom((Point)geom);
}
em.persist(theEvent);
em.getTransaction().commit();
em.close();
success=true;
HibernateSpatialJPA.close();
}
catch (Exception ex)
{
ex.printStackTrace();
success = false;
}
return success;
}
private Geometry wktToGeometry(String wktPoint) {
WKTReader fromText = new WKTReader();
Geometry geom = null;
try {
geom = fromText.read(wktPoint);
} catch (com.vividsolutions.jts.io.ParseException e) {
throw new RuntimeException("Not a WKT string:" + wktPoint);
}
return geom;
}
我的 Savegeojson实体 Class :
点(com.vividsolutions.jts.geom.*;)
private Point geom;
@Basic
@Column(columnDefinition="Geometry",name = "geom", nullable = true, insertable = true, updatable = true)
@Type(type="org.hibernate.spatial.GeometryType")
public Point getGeom() {return geom;}
public void setGeom(Point geom) {this.geom = geom;}`
方法插入
System.out.println("geomPo "+geom);
geomPo = null
因为
item.getData() value:
"coordinates":[-48.287108838558,-15.679686963558],"type":"Point"
我要item.getData() value :-48.287108838558,-15.679686963558
这是我的 stracktrace :
javax.persistence.RollbackException: Error while committing the transaction
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:92)
at com.springapp.model.SavegeojsonManager.insert(SavegeojsonManager.java:55)
at com.springapp.model.SavegeojsonManager.insert(SavegeojsonManager.java:26)
at com.springapp.mvc.HSpatialController.saveGeoJson(HSpatialController.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.UnsupportedOperationException
at org.hibernate.spatial.GeometrySqlTypeDescriptor.getBinder(GeometrySqlTypeDescriptor.java:52)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:305)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:300)
at org.hibernate.type.AbstractSingleColumnStandardBasicType.nullSafeSet(AbstractSingleColumnStandardBasicType.java:57)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2705)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2959)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3403)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:275)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1214)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:403)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:75)
... 40 more
请。
提前致谢。
已更新
好的，通过远程桌面进行一些调查后，我们终于做到了。
结论是 SavegeojsonEntity 上的注释有误。
- 注释适用于字段而不适用于 get 方法
- 方言错误：而不是：
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL82Dialect"/>
最合适的是
<property name="hibernate.dialect" value="org.hibernate.spatial.dialect.postgis.PostgisDialect"/>
当然也必须这样做才能使 Point.
你的 GeoJSON 有问题
public class GeoJSON{
private String type;
private String data;
private String pointRepresentation;
public String getType() {return type;}
public void setType(String type) {this.type = type;}
public String getPointRepresentation(){return this.pointRepresentation;}
public String getData() {return data;}
public void setData(String data) { this.data = data; }
public GeoJSON() {
}
public GeoJSON(JSONObject json) {
parse(json);
}
public GeoJSON parse(JSONObject json) {
JSONArray jsonArray = json.getJSONArray("coordinates");
this.type = json.getString("type");
data = "";
for (int i = 0; i < jsonArray.length(); i++) {
data += jsonArray.get(i) + ",";
}
if (data != null && !data.isEmpty()) {
data = data.substring(0, data.length() - 1);
pointRepresentation = type + "(" + data + ")";
}
return this;
}
}
并在此处放置点表示：
if(vectorType.equals("Point"))
{
Geometry geom = wktToGeometry(item.getPointRepresentation());
System.out.println("geomPo "+geom);
theEvent.setGeom((Point)geom);
}
并检查结果。
我想将 json 数据保存到数据库，但首先我需要解析 JSON 数据。我做了矢量类型解析器，但我无法协调。
示例：geoJson
{"coordinates":[-48.287108838558,-15.679686963558],"type":"Point"}
我保存为矢量类型。 我的 Geojson 解析代码 :
public class GeoJSON{
private String type;
private String data;
public String getType() {return type;}
public void setType(String type) {this.type = type;}
public String getData() {return data;}
public void setData(String data) { this.data = data; }
public GeoJSON() {
}
public GeoJSON(JSONObject json) {
parse(json);
}
public GeoJSON parse(JSONObject json) {
StringWriter out = new StringWriter();
json.write(out);
this.data = out.toString();
this.type = json.getString("type");
try {
out.close();
} catch (IOException ex) {
System.out.println(ex.getMessage());
throw new RuntimeException(ex);
}
return this;
}
在插入方法中的 Mycontroller 之后：
public boolean insert(GeoJSON item)
{
SavegeojsonEntity theEvent = new SavegeojsonEntity();
boolean success;
try {
String vectorType = item.getType();
EntityManager em = HibernateSpatialJPA.createEntityManager();
em.getTransaction().begin();
theEvent.setVectorType(vectorType);
if(vectorType.equals("Point"))
{
Geometry geom = wktToGeometry(item.getData());
System.out.println("geomPo "+geom);
theEvent.setGeom((Point)geom);
}
em.persist(theEvent);
em.getTransaction().commit();
em.close();
success=true;
HibernateSpatialJPA.close();
}
catch (Exception ex)
{
ex.printStackTrace();
success = false;
}
return success;
}
private Geometry wktToGeometry(String wktPoint) {
WKTReader fromText = new WKTReader();
Geometry geom = null;
try {
geom = fromText.read(wktPoint);
} catch (com.vividsolutions.jts.io.ParseException e) {
throw new RuntimeException("Not a WKT string:" + wktPoint);
}
return geom;
}
我的 Savegeojson实体 Class :
点(com.vividsolutions.jts.geom.*;)
private Point geom;
@Basic
@Column(columnDefinition="Geometry",name = "geom", nullable = true, insertable = true, updatable = true)
@Type(type="org.hibernate.spatial.GeometryType")
public Point getGeom() {return geom;}
public void setGeom(Point geom) {this.geom = geom;}`
方法插入
System.out.println("geomPo "+geom);
geomPo = null
因为
item.getData() value:
"coordinates":[-48.287108838558,-15.679686963558],"type":"Point"
我要item.getData() value :-48.287108838558,-15.679686963558
这是我的 stracktrace :
javax.persistence.RollbackException: Error while committing the transaction
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:92)
at com.springapp.model.SavegeojsonManager.insert(SavegeojsonManager.java:55)
at com.springapp.model.SavegeojsonManager.insert(SavegeojsonManager.java:26)
at com.springapp.mvc.HSpatialController.saveGeoJson(HSpatialController.java:46)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at java.lang.reflect.Method.invoke(Method.java:497)
at org.springframework.web.method.support.InvocableHandlerMethod.invoke(InvocableHandlerMethod.java:215)
at org.springframework.web.method.support.InvocableHandlerMethod.invokeForRequest(InvocableHandlerMethod.java:132)
at org.springframework.web.servlet.mvc.method.annotation.ServletInvocableHandlerMethod.invokeAndHandle(ServletInvocableHandlerMethod.java:104)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.invokeHandleMethod(RequestMappingHandlerAdapter.java:781)
at org.springframework.web.servlet.mvc.method.annotation.RequestMappingHandlerAdapter.handleInternal(RequestMappingHandlerAdapter.java:721)
at org.springframework.web.servlet.mvc.method.AbstractHandlerMethodAdapter.handle(AbstractHandlerMethodAdapter.java:83)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:943)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:877)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:966)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:868)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:647)
at org.springframework.web.servlet.FrameworkServlet.service(FrameworkServlet.java:842)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.tomcat.websocket.server.WsFilter.doFilter(WsFilter.java:51)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:100)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1041)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:603)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.doRun(AprEndpoint.java:2430)
at org.apache.tomcat.util.net.AprEndpoint$SocketProcessor.run(AprEndpoint.java:2419)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at java.lang.Thread.run(Thread.java:745)
Caused by: java.lang.UnsupportedOperationException
at org.hibernate.spatial.GeometrySqlTypeDescriptor.getBinder(GeometrySqlTypeDescriptor.java:52)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:305)
at org.hibernate.type.AbstractStandardBasicType.nullSafeSet(AbstractStandardBasicType.java:300)
at org.hibernate.type.AbstractSingleColumnStandardBasicType.nullSafeSet(AbstractSingleColumnStandardBasicType.java:57)
at org.hibernate.persister.entity.AbstractEntityPersister.dehydrate(AbstractEntityPersister.java:2705)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:2959)
at org.hibernate.persister.entity.AbstractEntityPersister.insert(AbstractEntityPersister.java:3403)
at org.hibernate.action.internal.EntityInsertAction.execute(EntityInsertAction.java:88)
at org.hibernate.engine.spi.ActionQueue.execute(ActionQueue.java:362)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:354)
at org.hibernate.engine.spi.ActionQueue.executeActions(ActionQueue.java:275)
at org.hibernate.event.internal.AbstractFlushingEventListener.performExecutions(AbstractFlushingEventListener.java:326)
at org.hibernate.event.internal.DefaultFlushEventListener.onFlush(DefaultFlushEventListener.java:52)
at org.hibernate.internal.SessionImpl.flush(SessionImpl.java:1214)
at org.hibernate.internal.SessionImpl.managedFlush(SessionImpl.java:403)
at org.hibernate.engine.transaction.internal.jdbc.JdbcTransaction.beforeTransactionCommit(JdbcTransaction.java:101)
at org.hibernate.engine.transaction.spi.AbstractTransactionImpl.commit(AbstractTransactionImpl.java:175)
at org.hibernate.ejb.TransactionImpl.commit(TransactionImpl.java:75)
... 40 more
请。 提前致谢。
已更新
好的，通过远程桌面进行一些调查后，我们终于做到了。
结论是 SavegeojsonEntity 上的注释有误。
- 注释适用于字段而不适用于 get 方法
- 方言错误：而不是：
<property name="hibernate.dialect" value="org.hibernate.dialect.PostgreSQL82Dialect"/>
最合适的是
<property name="hibernate.dialect" value="org.hibernate.spatial.dialect.postgis.PostgisDialect"/>
当然也必须这样做才能使 Point.
你的 GeoJSON 有问题
public class GeoJSON{
private String type;
private String data;
private String pointRepresentation;
public String getType() {return type;}
public void setType(String type) {this.type = type;}
public String getPointRepresentation(){return this.pointRepresentation;}
public String getData() {return data;}
public void setData(String data) { this.data = data; }
public GeoJSON() {
}
public GeoJSON(JSONObject json) {
parse(json);
}
public GeoJSON parse(JSONObject json) {
JSONArray jsonArray = json.getJSONArray("coordinates");
this.type = json.getString("type");
data = "";
for (int i = 0; i < jsonArray.length(); i++) {
data += jsonArray.get(i) + ",";
}
if (data != null && !data.isEmpty()) {
data = data.substring(0, data.length() - 1);
pointRepresentation = type + "(" + data + ")";
}
return this;
}
}
并在此处放置点表示：
if(vectorType.equals("Point"))
{
Geometry geom = wktToGeometry(item.getPointRepresentation());
System.out.println("geomPo "+geom);
theEvent.setGeom((Point)geom);
}
并检查结果。