Idea 中使用Groovy 脚本自动生成Entitys类
原生成脚本来自园长：from：http://javaweb.org
import com.intellij.database.model.DasTable
import com.intellij.database.model.ObjectKind
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
/*
* 默认可用的 context 绑定:
* SELECTION Iterable<DasObject>
* PROJECT project
* FILES files helper
*/
packageName = ""
typeMapping = [
(~/(?i)tinyint|smallint|mediumint/) : "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 = javaName(table.getName(), true)
def fields = calcFields(table)
packageName = getPackageName(dir)
new File(dir, className + ".java").withPrintWriter { out -> generate(out, className, fields) }
}
/**
* 获取包名称
* @param dir 实体类所在目录
* @return
*/
def getPackageName(dir) {
return dir.toString().replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
}
/**
* 实体类代码生成
* @param out
* @param className
* @param fields
* @return
*/
def generate(out, className, fields) {
out.println "package $packageName"
out.println ""
Set<String> types = new HashSet<String>()
fields.each() {
types.add(it.type)
}
out.println "import com.alibaba.fastjson.annotation.JSONField;"
out.println "import javax.persistence.Column;"
if (types.contains("Date")) {
out.println "import java.util.Date;"
}
if (types.contains("InputStream")) {
out.println "import java.io.InputStream;"
}
out.println "import java.io.Serializable;"
out.println ""
out.println "public class $className implements Serializable {"
fields.each() {
out.println ""
if (it.annos != "") out.println " ${it.annos}"
// 输出注释
if (isNotEmpty(it.commoent)) {
out.println "\t/**"
out.println "\t * ${it.commoent}"
out.println "\t */"
}
// 输出成员变量
out.println "\tprivate ${it.type} ${it.name};"
}
// 输出get/set方法
fields.each() {
out.println ""
if (isNotEmpty(it.comment)) {
out.println "\t/**"
out.println "\t * 获取${it.comment}"
out.println "\t * @return"
out.println "\t */"
}
def actionName = "Boolean".equals(it.type.toString()) ? "is" : "get"
out.println "\tpublic ${it.type} ${actionName}${it.name.capitalize()}() {"
out.println "\t\treturn this.${it.name};"
out.println "\t}"
out.println ""
if (isNotEmpty(it.comment)) {
out.println "\t/**"
out.println "\t * 设置${it.comment}"
out.println "\t * @param ${it.name}"
out.println "\t */"
}
out.println "\tpublic void set${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
fields += [[
colName : col.getName(),
name : javaName(col.getName(), false),
type : typeStr,
comment: col.getComment(),
annos : ""]]
}
}
def javaName(str, capitalize) {
def s = str.split(/[^\p{Alnum}]/).collect { def s = Case.LOWER.apply(it).capitalize() }.join("")
capitalize ? s : Case.LOWER.apply(s[0]) + s[1..-1]
}
def isNotEmpty(content) {
return content != null && content.toString().trim().length() > 0
}
增强版本
增加Serializable ID
增加@JSONField以及@Column注解生成方式
增加添加@Entity注解以及添加@Table 名
import com.intellij.database.model.DasTable
import com.intellij.database.model.ObjectKind
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
/*
* 默认可用的 context 绑定:
* SELECTION Iterable<DasObject>
* PROJECT project
* FILES files helper
*/
packageName = ""
tableName = ""
typeMapping = [
(~/(?i)tinyint|smallint|mediumint/) : "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 = javaName(table.getName(), true)
def fields = calcFields(table)
packageName = getPackageName(dir)
tableName = table.getName()
new File(dir, className + ".java").withPrintWriter { out -> generate(out, className, fields) }
}
/**
* 获取包名称
* @param dir 实体类所在目录
* @return
*/
def getPackageName(dir) {
return dir.toString().replaceAll("/", ".").replaceAll("^.*src(\\.main\\.java\\.)?", "") + ";"
}
/**
* 实体类代码生成
* @param out
* @param className
* @param fields
* @return
*/
def generate(out, className, fields) {
out.println "package $packageName"
out.println ""
Set<String> types = new HashSet<String>()
fields.each() {
types.add(it.type)
}
out.println "import com.alibaba.fastjson.annotation.JSONField;"
out.println "import javax.persistence.Column;"
out.println "import javax.persistence.Entity;"
out.println "import javax.persistence.Table;"
if (types.contains("Date")) {
out.println "import java.util.Date;"
}
if (types.contains("InputStream")) {
out.println "import java.io.InputStream;"
}
out.println "import java.io.Serializable;"
out.println ""
out.println "@Entity"
out.println "@Table(name = \"$tableName\")"
out.println "public class $className implements Serializable {"
fields.each() {
out.println ""
if (it.annos != "") out.println " ${it.annos}"
// 输出注释
if (isNotEmpty(it.commont)) {
out.println "\t/**"
out.println "\t * ${it.commont}"
out.println "\t */"
}
def matcher = ("${it.colName}" =~ /[0-9]/);
if (matcher.getCount() > 0) {
//输出Column
out.println "\t@Column(name = \"${it.colName}\")"
}
//输出JSONField
out.println "\t@JSONField(name = \"${it.colName}\")"
// 输出成员变量
out.println "\tprivate ${it.type} ${it.name};"
}
// 输出get/set方法
fields.each() {
out.println ""
if (isNotEmpty(it.comment)) {
out.println "\t/**"
out.println "\t * 获取${it.comment}"
out.println "\t * @return"
out.println "\t */"
}
def actionName = "Boolean".equals(it.type.toString()) ? "is" : "get"
out.println "\tpublic ${it.type} ${actionName}${it.name.capitalize()}() {"
out.println "\t\treturn this.${it.name};"
out.println "\t}"
out.println ""
if (isNotEmpty(it.comment)) {
out.println "\t/**"
out.println "\t * 设置${it.comment}"
out.println "\t * @param ${it.name}"
out.println "\t */"
}
out.println "\tpublic void set${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
fields += [[
colName: col.getName(),
name : javaName(col.getName(), false),
type : typeStr,
comment: col.getComment(),
annos : ""]]
}
}
def javaName(str, capitalize) {
def s = str.split(/[^\p{Alnum}]/).collect { def s = Case.LOWER.apply(it).capitalize() }.join("")
capitalize ? s : Case.LOWER.apply(s[0]) + s[1..-1]
}
def isNotEmpty(content) {
return content != null && content.toString().trim().length() > 0
}
