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[GitHub] [dubbo] liukefu2050 opened a new issue, #10459: DubboService 和 @Transactional 一起配置事务失效
liukefu2050 opened a new issue, #10459:
URL: https://github.com/apache/dubbo/issues/10459
<!-- If you need to report a security issue please visit https://github.com/apache/dubbo/security/policy -->
### Environment
* Dubbo version: 3.0.10
* Operating System version: win7
* Java version: 1.8
### Steps to reproduce this issue
```java
@SpringBootApplication(exclude = DruidDataSourceAutoConfigure.class)
@Slf4j
@EnableJpaRepositories(basePackages = "com.xiushang") //用于扫描Dao @Repository
@EntityScan("com.xiushang.entity") //用于扫描JPA实体类 @Entity
@ServletComponentScan(basePackages = {"com.xiushang.filter"})
@EnableRedisHttpSession
@EnableDubbo
@EnableTransactionManagement(proxyTargetClass = true)
public class AdminApplication extends SpringBootServletInitializer {
public static void main(String[] args) throws Exception {
ConfigurableApplicationContext application = SpringApplication.run(AdminApplication.class, args);
}
@Override
protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) {
return builder.sources(AdminApplication.class);
}
}
```
```
@DubboService(interfaceClass=CustomService.class,filter = "userFilter",retries = 0)
public class CustomServiceImpl extends BaseServiceImpl<CustomEntity> implements CustomService {
@Transactional(readOnly = true)
public PageTableVO findPageList(CustomSearchVo searchPageVo) {
...
Page<CustomEntity> page = findPageList(ex, searchPageVo.createPageRequest(new Sort.Order(dir, "lastContactDate")));
LazyLoadUtil.fullLoad(page);
PageTableVO vo = new PageTableVO(page, searchPageVo);
return vo;
}
}
```
代码使用了JPA，CustomEntity 中有延迟加载的属性，因此需要session
### Expected Behavior
能正常返回，并延迟加载 CustomEntity中所有属性
<!-- What do you expect from the above steps？-->
### Actual Behavior
could not initialize proxy - no Session
<!-- What actually happens? -->
If there is an exception, please attach the exception trace:
```
amic=true, service.filter=userFilter, anyhost=true},}, cause: org.apache.dubbo.remoting.RemotingException: Failed to send response: Response [id=6, version=2.0.2, status=20, event=false, error=null, result=AppResponse [value=com.xiushang.framework.entity.vo.PageTableVO@6fc8a7cf, exception=null]], cause: java.lang.RuntimeException: failed to lazily initialize a collection of role: com.xiushang.entity.shop.ShopEntity.images, could not initialize proxy - no Session Java field: private java.util.List com.xiushang.entity.shop.ShopEntity.images
Java field: private com.xiushang.entity.shop.ShopEntity com.xiushang.entity.custom.CustomGroupEntity.belongShop
Java field: private java.util.List com.xiushang.entity.custom.CustomEntity.groupList
Java field: private java.util.List com.xiushang.framework.entity.vo.PageTableVO.rowData
java.lang.RuntimeException: failed to lazily initialize a collection of role: com.xiushang.entity.shop.ShopEntity.images, could not initialize proxy - no Session
Java field: private java.util.List com.xiushang.entity.shop.ShopEntity.images
Java field: private com.xiushang.entity.shop.ShopEntity com.xiushang.entity.custom.CustomGroupEntity.belongShop
Java field: private java.util.List com.xiushang.entity.custom.CustomEntity.groupList
Java field: private java.util.List com.xiushang.framework.entity.vo.PageTableVO.rowData
at com.alibaba.com.caucho.hessian.io.JavaSerializer$FieldSerializer.serialize(JavaSerializer.java:304)
at com.alibaba.com.caucho.hessian.io.JavaSerializer.writeInstance(JavaSerializer.java:284)
at com.alibaba.com.caucho.hessian.io.JavaSerializer.writeObject(JavaSerializer.java:251)
at com.alibaba.com.caucho.hessian.io.Hessian2Output.writeObject(Hessian2Output.java:412)
at org.apache.dubbo.common.serialize.hessian2.Hessian2ObjectOutput.writeObject(Hessian2ObjectOutput.java:92)
at org.apache.dubbo.rpc.protocol.dubbo.DubboCodec.encodeResponseData(DubboCodec.java:225)
at org.apache.dubbo.remoting.exchange.codec.ExchangeCodec.encodeResponse(ExchangeCodec.java:309)
at org.apache.dubbo.remoting.exchange.codec.ExchangeCodec.encode(ExchangeCodec.java:73)
at org.apache.dubbo.rpc.protocol.dubbo.DubboCountCodec.encode(DubboCountCodec.java:47)
at org.apache.dubbo.remoting.transport.netty4.NettyCodecAdapter$InternalEncoder.encode(NettyCodecAdapter.java:69)
at io.netty.handler.codec.MessageToByteEncoder.write(MessageToByteEncoder.java:107)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite0(AbstractChannelHandlerContext.java:717)
at io.netty.channel.AbstractChannelHandlerContext.invokeWrite(AbstractChannelHandlerContext.java:709)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:792)
at io.netty.channel.AbstractChannelHandlerContext.write(AbstractChannelHandlerContext.java:702)
```
请问最新版本dubbo 不是已经解决了DubboService 和 @Transactional 的问题吗，我是缺少了什么配置吗
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1216069212
我感觉不会是延迟加载问题，LazyLoadUtil.fullLoad(page); 方法应该已经加载了
```
@DubboService(interfaceClass=CustomService.class,filter = "userFilter",retries = 0)
public class CustomServiceImpl extends BaseServiceImpl<CustomEntity> implements CustomService {
@Transactional(readOnly = true)
public PageTableVO findPageList(CustomSearchVo searchPageVo) {
...
Page<CustomEntity> page = findPageList(ex, searchPageVo.createPageRequest(new Sort.Order(dir, "lastContactDate")));
//请注意下面这行代码
LazyLoadUtil.fullLoad(page);
PageTableVO vo = new PageTableVO(page, searchPageVo);
return vo;
}
}
public class LazyLoadUtil {
public synchronized static void fullLoad(Object object) {
if(object == null)
return;
JSON.toJSONString(object, new LazyLoadFilter());
}
}
```
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1216246132
经过DEBUG，好像是序列化问题
如下正常：
`
PageTableVO vo = new PageTableVO(page, searchPageVo);
String string = JSON.toJSONString(vo, new LazyLoadFilter());
vo = JSON.parseObject(string,PageTableVO.class);
return vo;
`
如下失败：
`
PageTableVO vo = new PageTableVO(page, searchPageVo);
String string = JSON.toJSONString(vo, new LazyLoadFilter());
//vo = JSON.parseObject(string,PageTableVO.class);
return vo;
`
那些延迟加载的属性，改如何处理？
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[GitHub] [dubbo] AlbumenJ commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1216073044
> 我感觉不会是延迟加载问题，LazyLoadUtil.fullLoad(page); 方法应该已经加载了
>
> ```
> @DubboService(interfaceClass=CustomService.class,filter = "userFilter",retries = 0)
> public class CustomServiceImpl extends BaseServiceImpl<CustomEntity> implements CustomService {
>
> @Transactional(readOnly = true)
> public PageTableVO findPageList(CustomSearchVo searchPageVo) {
> ...
> Page<CustomEntity> page = findPageList(ex, searchPageVo.createPageRequest(new Sort.Order(dir, "lastContactDate")));
> //请注意下面这行代码
> LazyLoadUtil.fullLoad(page);
> PageTableVO vo = new PageTableVO(page, searchPageVo);
>
> return vo;
> }
> }
>
> public class LazyLoadUtil {
>
> public synchronized static void fullLoad(Object object) {
> if(object == null)
> return;
> JSON.toJSONString(object, new LazyLoadFilter());
> }
>
>
> }
> ```
看报错是在返回的时候了，可以 debug 看下
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1214720232
```java
package com.xiushang.framework.entity.vo;
import io.swagger.annotations.ApiModelProperty;
import org.springframework.data.domain.Page;
import java.util.ArrayList;
import java.util.List;
/**
* 简单形式的分页组件
*/
public class PageTableVO<T> extends MgPageable {
private static final long serialVersionUID = -2332973656118325329L;
/**
* 数据集合
*/
@ApiModelProperty(notes = "数据集合")
private List<T> rowData;
/**
* 扩展信息
*/
@ApiModelProperty(notes = "扩展信息")
private Object extendData;
public PageTableVO() {
}
public PageTableVO(Page page,PageTableVO vo) {
if(page!=null){
setRowData(page.getContent());
setTotalCount(page.getTotalElements());
}
if(vo!=null){
setPageNo(vo.getPageNo());
setPageSize(vo.getPageSize());
}
}
public PageTableVO(Page page,MgPageable vo) {
if(page!=null){
setRowData(page.getContent());
setTotalCount(page.getTotalElements());
}
if(vo!=null){
setPageNo(vo.getPageNo());
setPageSize(vo.getPageSize());
}
}
public PageTableVO(Page page,BaseSearchPageVo vo) {
if(page!=null){
setRowData(page.getContent());
setTotalCount(page.getTotalElements());
}
if(vo!=null){
setPageNo(vo.getPageNo());
setPageSize(vo.getPageSize());
}
}
public List<T> getRowData() {
if(rowData==null){
rowData = new ArrayList<>();
}
return rowData;
}
public void setRowData(List<T> rowData) {
this.rowData = rowData;
}
public Object getExtendData() {
return extendData;
}
public void setExtendData(Object extendData) {
this.extendData = extendData;
}
}
```
```java
package com.xiushang.framework.entity.vo;
import io.swagger.annotations.ApiModelProperty;
import java.io.Serializable;
/**
* 分页查询抽象类
*/
public abstract class MgPageable implements Serializable {
/**
* 当前的页数
*/
@ApiModelProperty(notes = "当前的页数")
private int pageNo = 1;
/**
* 当前每页所显示的行数。
*/
@ApiModelProperty(notes = "当前每页所显示的行数")
private int pageSize = 15;
/**
* 总行数。
*/
@ApiModelProperty(notes = "总行数")
private long totalCount = 0;
@ApiModelProperty(notes = "是否有更多")
private Boolean hasMore = false;
public int getPageNo() {
return pageNo;
}
public void setPageNo(int pageNo) {
this.pageNo = pageNo;
}
public int getPageSize() {
return pageSize;
}
public void setPageSize(int pageSize) {
this.pageSize = pageSize;
}
public long getTotalCount() {
return totalCount;
}
public void setTotalCount(long totalCount) {
this.totalCount = totalCount;
}
public Boolean getHasMore() {
return getTotalCount()>(getPageSize()*getPageNo());
}
public void setHasMore(Boolean hasMore) {
this.hasMore = hasMore;
}
}
```
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1216248566
测试仓库：
https://github.com/liukefu2050/DubboTransactional.git
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[GitHub] [dubbo] AlbumenJ commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1214570914
这个和 Dubbo 没啥关系，是你的 `com.xiushang.framework.entity.vo.PageTableVO` 不支持 `@transactional`
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1233896434
[已解决，参见](https://github.com/liukefu2050/DubboTransactional.git)
[参考文章](https://www.pudn.com/news/628f843dbf399b7f351ee78d.html)
原因：dubbo 不能序列化hibernate 中Lazy，persistent 对象。需要引入hibernate 对象序列化实现
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1233891196
[wen](https://www.pudn.com/news/628f843dbf399b7f351ee78d.html)
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[GitHub] [dubbo] AlbumenJ commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
AlbumenJ commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1216059688
https://stackoverflow.com/questions/11746499/how-to-solve-the-failed-to-lazily-initialize-a-collection-of-role-hibernate-ex 看一下这篇呢
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[GitHub] [dubbo] liukefu2050 commented on issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 commented on issue #10459:
URL: https://github.com/apache/dubbo/issues/10459#issuecomment-1214640773
你好，感谢回复，能具体点吗？如何解决这个问题？service我改造成dubbo之前，功能正常的啊，变成DubboService，才不行的。
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[GitHub] [dubbo] liukefu2050 closed issue #10459: DubboService 和 @Transactional 一起配置事务失效
Posted by GitBox <gi...@apache.org>.
liukefu2050 closed issue #10459: DubboService 和 @Transactional 一起配置事务失效
URL: https://github.com/apache/dubbo/issues/10459
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