IDEA 生成带注释的实体类 脚本
import com.intellij.database.model.DasTable
import com.intellij.database.model.ObjectKind
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
import java.sql.Date
/*
* Available context bindings:
* SELECTION Iterable<DasObject>
* PROJECT project
* FILES files helper
*/
/**
* 通过Databas生成实体类
* 自动识别类型
* 加字段注释
*/
packageName = ""
//类型字典
typeMapping = [
(~/(?i)tinyint|smallint|mediumint|int/) : "Integer",
// (~/(?i)int/) : "Long",
(~/(?i)bool|bit/) : "Boolean",
(~/(?i)float|double|decimal|real/) : "Double",
(~/(?i)datetime|timestamp|date|time/) : "Date",
(~/(?i)blob|binary|bfile|clob|raw|image/) : "InputStream",
(~/(?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 = changeStyle(javaName(table.getName(), true), true)
def fields = calcFields(table)
packageName = getPackageName(dir)
PrintWriter printWriter = new PrintWriter(new OutputStreamWriter(new FileOutputStream(new File(dir, className + ".java")), "UTF-8"))
printWriter.withPrintWriter { out -> generate(out, className, fields, table) }
// new File(dir, className + ".java").withPrintWriter { out -> generate(out, className, fields, table) }
}
// 获取包所在文件夹路径
def getPackageName(dir) {
return dir.toString().replaceAll("\\\\", ".").replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
}
def generate(out, className, fields, table) {
out.println "package $packageName"
out.println ""
out.println "import lombok.Data;"
out.println ""
out.println "import javax.persistence.*;"
out.println "import java.io.Serializable;"
Set types = new HashSet()
fields.each() {
types.add(it.type)
}
if (types.contains("Date")) {
out.println "import java.util.Date;"
}
if (types.contains("InputStream")) {
out.println "import java.io.InputStream;"
}
out.println ""
out.println "/**\n" +
" * 生成带注释的实体类 \n" +
" * \n" +
" * @date " + new java.sql.Date(new java.util.Date().getTime()).toString() + "\n" +
" * @author xiefei\n" +
" */"
out.println ""
out.println "@Data"
out.println "@Entity"
out.println "@Table(name =\"" + table.getName() + "\")"
out.println "public class $className implements Serializable {"
out.println ""
out.println genSerialID()
fields.each() {
out.println ""
// 输出注释
if (isNotEmpty(it.commoent)) {
out.println "\t/**"
out.println "\t * ${it.commoent}"
out.println "\t */"
}
if (it.annos != "") out.println " ${it.annos}"
// 输出成员变量
out.println "\tprivate ${it.type} ${it.name};"
}
/* // 输出get/set方法
fields.each() {
out.println ""
out.println "\tpublic ${it.type} get${it.name.capitalize()}() {"
out.println "\t\treturn this.${it.name};"
out.println "\t}"
out.println ""
out.println "\tpublic void set${it.name.capitalize()}(${it.type} ${it.name}) {"
out.println "\t\tthis.${it.name} = ${it.name};"
out.println "\t}"
}*/
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
def comm = [
colName : col.getName(),
name : changeStyle(javaName(col.getName(), false), true),
type : typeStr,
commoent: col.getComment(),
// annos : "\t@Column(name = \"" + col.getName() + "\")"]
annos : "\t@Column(name = \"`" + col.getName() + "`\")"]
if ("id".equals(Case.LOWER.apply(col.getName()))) {
comm.annos = " @Id"
if ("Integer".equals(typeStr)) {
comm.annos += "\n\t@GeneratedValue(strategy = GenerationType.IDENTITY)"
}
}
fields += [comm]
}
}
// 处理类名(这里是因为我的表都是以t_命名的,所以需要处理去掉生成类名时的开头的T,
// 如果你不需要那么请查找用到了 javaClassName这个方法的地方修改为 javaName 即可)
def javaClassName(str, capitalize) {
def s = str.split(/[^\p{Alnum}]/).collect { def s = Case.LOWER.apply(it).capitalize() }.join("")
// 去除开头的T http://developer.51cto.com/art/200906/129168.htm
s = s[1..s.size() - 1]
capitalize ? s : Case.LOWER.apply(s[0]) + s[1..-1]
}
def javaName(str, capitalize) {
def s = str.split(/(?<=[^\p{IsLetter}])/).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
}
static String changeStyle(String str, boolean toCamel) {
if (!str || str.size() <= 1)
return str
if (toCamel) {
String r = str.toLowerCase().split('_').collect { cc -> Case.LOWER.apply(cc).capitalize() }.join('')
return r[0].toLowerCase() + r[1..-1]
} else {
str = str[0].toLowerCase() + str[1..-1]
return str.collect { cc -> ((char) cc).isUpperCase() ? '_' + cc.toLowerCase() : cc }.join('')
}
}
// 生成serialVersionUID
static String genSerialID() {
return "\tprivate static final long serialVersionUID = " + Math.abs(new Random().nextLong()) + "L;"
}
将以上代码保存成
GenerateScript.groovy
文件, 放在IDEA\config\extensions\com.intellij.database\schema
目录下