Java调用oracle存储过程，集合入参的正确姿势

这是我工作之前遇到的一个需求，Java调用存储过程，入参是集合。踩了一些坑，决定写个干货，和大家分享下。

项目使用的oracle版本：

   
            com.oracle
            ojdbc6
            11.2.0.1.0
            system
            ${project.basedir}/lib/com/oracle/ojdbc6/11.2.0.1.0/ojdbc6-11.2.0.1.0.jar
   

具体的Java代码如下：

import oracle.jdbc.OracleTypes;
import oracle.sql.ARRAY;
import oracle.sql.ArrayDescriptor;
import oracle.sql.STRUCT;
import oracle.sql.StructDescriptor;
import org.springframework.dao.DataAccessException;
import org.springframework.jdbc.core.CallableStatementCallback;
import org.springframework.jdbc.core.CallableStatementCreator;
import org.springframework.jdbc.core.JdbcTemplate;
import java.sql.CallableStatement;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;

注：T_ARRAY_VITAL_SIGNS 对应存储过程自定义的对象数组，必须要大写

private  Object execute( final List  list) {
        return jdbcTemplate.execute(new CallableStatementCreator(){
            @Override
            public CallableStatement createCallableStatement(Connection con) throws SQLException {
                String execuSql = "{call ExecuteInterface.saveBatchVitalSign(?,?,?)}";
                con = con.getMetaData().getConnection();
                ARRAY array = getOracleArray(con, "T_ARRAY_VITAL_SIGNS", list);
                CallableStatement cs = con.prepareCall(execuSql);
                cs.setArray(1,array);
                cs.registerOutParameter(2, OracleTypes.INTEGER);
                cs.registerOutParameter(3, OracleTypes.VARCHAR);
                return cs;
            }
        },new CallableStatementCallback(){
            @Override
            public String doInCallableStatement(CallableStatement cs) throws SQLException, DataAccessException {
                cs.execute();
                int errorcode = cs.getInt(2);
                if (errorcode < 0) {
                    String errormsg = cs.getString(3);
                    throw new RuntimeException("添加数据失败：" + errormsg);
                }
                else if (errorcode == 0) {
                    return "SUCCESS";
                }
                return "SUCCESS";
            }
        });
    }

定义传给存储过程方法的对象数组结构参数。（注：T_VITAL_SIGNS 对应存储过程自定义的对象,必须要大写）

private  ARRAY getOracleArray(Connection con, String Oraclelist,List list) throws SQLException {
        ARRAY result = null;
        if(list!=null&& list.size() > 0){
        StructDescriptor structdesc = new StructDescriptor("T_VITAL_SIGNS", con);
        STRUCT[] structs = new STRUCT[list.size()];
        Object[] objects = new Object[0];
            for (int i = 0; i < list.size();i++) {
                objects = new Object[11];
                objects[0] = new String(((HisBatchThreeTest)(list.get(i))).getPatientId());
                objects[1] = new String(((HisBatchThreeTest)(list.get(i))).getVisitId());
                objects[2] = new String(((HisBatchThreeTest)(list.get(i))).getTimePoint());
                objects[3] = new String(((HisBatchThreeTest)(list.get(i))).getClassCode());
                objects[4] = new String(((HisBatchThreeTest)(list.get(i))).getVitalCode());
                objects[5] = new String(((HisBatchThreeTest)(list.get(i))).getVitalSigns());
                objects[6] = new String(((HisBatchThreeTest)(list.get(i))).getVitalSignsValue());
                objects[7] = new String(((HisBatchThreeTest)(list.get(i))).getUnits());
                objects[8] = new String(((HisBatchThreeTest)(list.get(i))).getNurse());
                objects[9] = new String(((HisBatchThreeTest)(list.get(i))).getWardCode());
                objects[10] = new String(((HisBatchThreeTest)(list.get(i))).getBedLabel());
                structs[i] = new STRUCT(structdesc, con, objects);
            }
            ArrayDescriptor desc = ArrayDescriptor.createDescriptor(Oraclelist,con);
            result = new ARRAY(desc, con, structs);
        }
            return result;
    }

注：接收字段若为VARCHAR2，赋值不了给存储过程，需要定义为NVARCHAR2

oracle对象.png

oracle数组 .png