Hibernate annotion multi-to-Multi-link example

Objects are many-to-many relationships,

The error entity code is as follows:

Java code:

 
 

  
  
@ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.EAGER)
  
  
 @JoinTable(name = "product_packagetype:packageTypes:products")
  
  
 private java.util.Listimplambition.forxxx.model.PackageType> packageTypes;
  
  
 /** 
  
  
 * @generated 
  
  
 */
  
  
 @ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.EAGER)
  
  
 @JoinTable(name = "product_productcolor:productColors:products")
  
  
 private java.util.Listimplambition.forxxx.model.ProductColor> productColors;
  
  
 /** 
  
  
 * @generated 
  
  
 */
  
  
 @ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.EAGER)
  
  
 @JoinTable(name = "product_attach:attachs:products")
  
  
 private java.util.Listimplambition.forxxx.model.Attach> attachs;
  
  
 
  
  
 
 
 

The Code itself cannot run normally, and the error cannot simultaneously fetch multiple bags is reported.
After fetchtype. Lazy is changed, the following error occurs: Warn [main] 16:46:18, 655-SQL error: 1064, sqlstate: 42000
Error
[Main] 16:46:18, 655-you have an error in your SQL syntax;
Check the manual that corresponds to your MySQL Server version for
Right syntax to use near ': packagetypes: Products packagetyp0 _ left
Outer Join packagetype packagetyp1 _ on 'at line 1

The last modification can only be:
Product entity

Java code:

 
 

  
  
/** 
  
  
 * @generated 
  
  
 */
  
  
 @ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.LAZY)
  
  
 //@JoinTable(name = "product_packagetype:packageTypes:products")
  
  
 @JoinTable(name = "product_packagetype", joinColumns = { @JoinColumn(name = "packageTypes") }, inverseJoinColumns = { @JoinColumn(name = "products") }) 
  
  
 private java.util.Listimplambition.forxxx.model.PackageType> packageTypes;
  
  
 /** 
  
  
 * @generated 
  
  
 */
  
  
 @ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.LAZY)
  
  
 //@JoinTable(name = "product_productcolor:productColors:products")
  
  
 @JoinTable(name = "product_productcolor", joinColumns = { @JoinColumn(name = "productColors") }, inverseJoinColumns = { @JoinColumn(name = "products") })
  
  
 private java.util.Listimplambition.forxxx.model.ProductColor> productColors;
  
  
 /** 
  
  
 * @generated 
  
  
 */
  
  
 @ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.LAZY)
  
  
 //@JoinTable(name = "product_attach:attachs:products")
  
  
 @JoinTable(name = "product_attach", joinColumns = { @JoinColumn(name = "attachs") }, inverseJoinColumns = { @JoinColumn(name = "products") })
  
  
 private java.util.Listimplambition.forxxx.model.Attach> attachs;
 
 

Only one example of other associated entities is listed. The Code is as follows (the code generated by studio is commented out)

Java code:

 
 

  
  
/** 
  
  
 * @generated 
  
  
 */
  
  
 //@ManyToMany(cascade = CascadeType.PERSIST, fetch = FetchType.EAGER)
  
  
 @ManyToMany(cascade = {CascadeType.PERSIST, CascadeType.MERGE }, fetch = FetchType.LAZY, mappedBy="attachs")
  
  
 private java.util.Listimplambition.forxxx.model.Product> products;