idea生成mysql表_IDEA根据数据库表结构生成Model类（POJO）
idea自动的脚本可以将一个数据的表结构自动生成模型类，变量名采用驼峰命名方式。下面是一个简单的系统参数表创建的sql：create table system_parameter
(
ID bigint auto_increment
comment '主键'
primary key,
SKEY varchar(32) not null
comment '键名',
SVALUE varchar(256) null
comment '键值',
REMARK varchar(256) null
comment '备注',
OPERATER varchar(20) null
comment '操作人',
CREATE_TIME datetime null
comment '创建时间',
UPDATE_TIME datetime null
comment '更新时间',
constraint UK_SYSTEM_PARAMETER
unique (SYS_KEY)
)
comment '系统参数表'
charset = utf8;
自动生成该表对应的dmo类，操作如下：
1.表名上右击 - Scripted Extensions - Generate POJOs.groovy
2. 然后选择保存的位置。
改进的Script
Idea自带的script已经很强大了，但是如果想把表中注释信息，自动注释到dmo类上面，就需要使用下面的script。import com.intellij.database.model.DasTable
import com.intellij.database.model.ObjectKind
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
/*
* Available context bindings:
* SELECTION Iterable
* PROJECT project
* FILES files helper
*/
packageName = "com.suning.lcbpss.dao.dmo;"
typeMapping = [
(~/(?i)int/) : "Long",
(~/(?i)float|double|decimal|real/): "BigDecimal",
(~/(?i)datetime|timestamp/) : "Timestamp",
(~/(?i)date/) : "Date",
(~/(?i)time/) : "Time",
(~/(?i)/) : "String"
]
FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated files") { dir ->
SELECTION.filter { it instanceof DasTable && it.getKind() == ObjectKind.TABLE }.each { generate(it, dir) }
}
def generate(table, dir) {
def className = javaName(table.getName(), true)+"Dmo"
def fields = calcFields(table)
new File(dir, className + ".java").withPrintWriter('utf-8') { out -> generate(out, className, fields) }
}
def generate(out, className, fields) {
out.println "package $packageName"
out.println ""
out.println ""
Set types = new HashSet()
fields.each() {
types.add(it.type)
}
if (types.contains("Date")) {
out.println "import java.util.Date;"
}
if (types.contains("BigDecimal")) {
out.println "import java.math.BigDecimal;"
}
if (types.contains("Timestamp")) {
out.println "import java.sql.Timestamp;"
}
if (types.contains("Time")) {
out.println "import java.sql.Time;"
}
out.println ""
out.println ""
out.println "public class $className {"
out.println ""
fields.each() {
if (isNotEmpty(it.commoent)) {
out.println " /**"
out.println " * ${it.commoent}"
out.println " */"
}
if (it.annos != "") out.println " ${it.annos}"
out.println " private ${it.type} ${it.name};"
out.println ""
}
out.println ""
out.println ""
fields.each() {
if (isNotEmpty(it.commoent)) {
out.println " /**"
out.println " *"
out.println " * @return ${it.name}"
out.println " */"
}
out.println " public ${it.type} get${it.name.capitalize()}() {"
out.println " return ${it.name};"
out.println " }"
out.println ""
if (isNotEmpty(it.commoent)) {
out.println " /**"
out.println " *"
out.println " * @param ${it.name}"
out.println " */"
}
out.println " public void set${it.name.capitalize()}(${it.type} ${it.name}) {"
out.println " this.${it.name} = ${it.name};"
out.println " }"
out.println ""
}
out.println "}"
}
def calcFields(table) {
DasUtil.getColumns(table).reduce([]) { fields, col ->
def spec = Case.LOWER.apply(col.getDataType().getSpecification())
def typeStr = typeMapping.find { p, t -> p.matcher(spec).find() }.value
fields += [[
name : javaName(col.getName(), false),
type : typeStr,
commoent: col.getComment(),
annos: ""]]
}
}
def javaName(str, capitalize) {
def s = com.intellij.psi.codeStyle.NameUtil.splitNameIntoWords(str)
.collect { Case.LOWER.apply(it).capitalize() }
.join("")
.replaceAll(/[^\p{javaJavaIdentifierPart}[_]]/, "_")
capitalize || s.length() == 1? s : Case.LOWER.apply(s[0]) + s[1..-1]
}
def isNotEmpty(content) {
return content != null && content.toString().trim().length() > 0
}
添加脚本的方法如下：
1.在任意表名上右击 - Scripted Extensions - Go to Scripts Directory
2.然后在schema文件加下创建新的文件，将上面的脚本copy进去，每次生成dmo时，使用新的脚本即可。