Question

有类型：

CREATE OR REPLACE TYPE my_type IS OBJECT (
  id VARCHAR2(20),
  name VARCHAR2(40),
  phone NUMBER
);

我正在尝试使用以下类型创建对象：

....
Object[] myArray = new Object[3];
Object[] struct = new Object[values.size()];

int arrayIndex = 0;
for (User user : values) {
    myArray[0] = user.id().toString();
    myArray[1] = user.getName().toString();
    myArray[2] = user.getPhone();

    struct[arrayIndex++] = con.createStruct("my_type",myArray);
}

在创建con.createStruct结构的行上，发生错误：

java.sql.SQLException: Inconsistent java and sql object types, for classes implementing ORAData or OracleData, respective factory classes ORADataFactory and OracleDataFactory should be registered in typeMap.

有什么不对？

Answer 1

   myArray[0] = user.id().toString();
   myArray[1] = user.getName().toString();
   myArray[2] = user.getPhone();

这应该是：

-- First element of the array.
    myArray[0].id  = user.id().toString();
    myArray[0].name  = user.getName().toString();
    myArray[0].phone  = user.getPhone();

Answer 2

您可以使用Oracle JDBC扩展中的类StructDescriptor：

StructDescriptor structDescriptor = StructDescriptor.createDescriptor("my_type",conn);
Object[] attributes = {user.id().toString(),
               user.getName().toString(),
               user.getPhone()};

new STRUCT(structDescriptor, connection, attributes);

https://docs.oracle.com/cd/E18283_01/appdev.112/e13995/oracle/sql/StructDescriptor.html

例外：java和sql对象类型不一致

2 个答案: