Grails获取域类的表列

最新推荐文章于 2025-07-28 13:39:52 发布

原创最新推荐文章于 2025-07-28 13:39:52 发布 · 121 阅读

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#grails

本文介绍在Grails应用中如何遍历并注册所有域类，同时展示如何获取并打印每个域类的属性细节，包括使用正确的方法通过getKey()函数获取属性键名。

    def grailsApplication


        grailsApplication.getDomainClasses().each { it ->
            def domain = "${it.packageName}.${it.name}"
            println("注册：${domain}")
            def ee = EngineeringElement.findByNameAndDataTypeCode(domain, headerCode)
            if (!ee) {
                ee = new EngineeringElement(name: domain, dataTypeCode: headerCode, parentElement: null)
                engineeringElementService.save(ee)
                def item = it.clazz //.newInstance()
                def colums = GrailsDomainBinder.getMapping(item).columns
                colums.each { ite ->
                    println("填写：${ite}")
                }
            }
        }

结果：

创建基础的DataTypeCode: 域类标题
注册：cn.edu.cup.system.UserRole
填写：user=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:false, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：role=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:false, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
注册：cn.edu.cup.engineering.DataTypeCode
填写：name=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:true, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：description=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:false, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：parent=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:false, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
注册：cn.edu.cup.physical.PhysicalQuantity
填写：quantityName=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:true, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：englishName=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:true, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：symbol=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:true, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：unitNameISO=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:true, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]
填写：unitSymbolISO=property[type:null, lazy:null, columns:[column[name:null, index:null, unique:true, length:-1, precision:-1, scale:-1]], insertable:true, updateable:true]

正确的方法：

                def columns = GrailsDomainBinder.getMapping(item).columns
                columns.each { ite ->
                    println("填写：${ite.getKey()}")
                }

关键是getKey()