有个需求mybatis 插入的时候不知道有哪些字段，需要动态的传入值和字段

原文链接： https://bbs.csdn.net/topics/391010960

有个需求mybatis 插入的时候不知道有哪些字段，需要动态的传入值和字段，
 

Java code?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15

@Test     public void testAddProductGuaranty() {         //1    560    50000    2014/10/2 0:00:00    2014/11/1 0:00:00    500000    车况良好         Map productGuaranty = new HashMap();               //这些字段可能是不固定的，只做测试用         productGuaranty.put("product_id", 1);         productGuaranty.put("remark", "车况良好");         productGuaranty.put("price", 50000);         productGuaranty.put("release_date", new Date());         productGuaranty.put("license_date", new Date());         productGuaranty.put("distance", 50000);         productGuaranty.put("car_type", 560);         productGuaranty.put("car_id", 1);         productGuarantyService.addProductGuaranty(productGuaranty);     }

 

Java code?

1 2 3 4 5 6 7 8 9

@Override     public void addProductGuaranty(Map productGuaranty) {         Map params = new HashMap();                //获取动态字段         List customTableFields = configService.getTableFields("product_guaranty");                   productGuaranty.put("customTableFields", customTableFields);         productGuarantyDao.insert(productGuaranty);            }

 

SQL code?

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23

<insert id="insert" parameterType="java.util.Map" statementType="STATEMENT" >     insert into product_guaranty          "item" collection="customTableFields" open="("   separator="," close=")">                   ${item.fieldName}              values         "item" collection="customTableFields" open="("   separator="," close=")">                                 <when test="item.type == 'date'">                       ${item.fieldName}                                          when>                <when test="item.type == 'int'">                       ${item.fieldName}                                          when>                <when test="item.type == 'float'">                       ${item.fieldName}                                          when>                                           ${item.fieldName}                                              insert>

问题是第二个循环这里如何根据${item.fieldName} 从params中获取值？