Idea导出数据为POJO

`import com.intellij.database.model.DasTable
import com.intellij.database.util.Case
import com.intellij.database.util.DasUtil
/*

• Available context bindings:
• SELECTION Iterable
• PROJECT project
• FILES files helper
  */

packageName = ""
typeMapping = [
(~/(?i)int/) : "int",
(~/(?i)float|double|decimal|real/): "double",
(~/(?i)bool|bit/) : "Boolean",
(~/(?i)datetime|timestamp/) : "java.util.Date",
(~/(?i)date/) : "java.util.Date",
(~/(?i)time/) : "java.util.Date",
(~/(?i)/) : "String"
]

FILES.chooseDirectoryAndSave("Choose directory", "Choose where to store generated files") { dir ->
SELECTION.filter { it instanceof DasTable }.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) }
}

// 获取包所在文件夹路径
def getPackageName(dir) {
return dir.toString().replaceAll("\\", ".").replaceAll("/", ".").replaceAll("^.*src(\.main\.java\.)?", "") + ";"
}

def generate(out, className, fields) {
out.println "package $packageName"
out.println "import org.hibernate.annotations.GenericGenerator;"
out.println "import javax.persistence.*;"
out.println "import java.util.Date;"
out.println ""
out.println ""
out.println "/**\n" +
" * description \n" +
" * create by zhangqiang\n" +
" * create time "+ new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " \n" +
" */"
out.println "@Table"
out.println "@Entity"
out.println "public class $className {"
out.println ""
fields.each() {
if (it.name =="id"){
out.println " @Id"
out.println " @GeneratedValue(generator = "uuid")"
out.println " @GenericGenerator(name = "uuid", strategy = "uuid2")"
out.println " @Column(columnDefinition = "char(36) not null")"
}

    if (it.annos != "") out.println "  ${it.annos}"
    out.println "  private ${it.type} ${it.name};"
}


out.println ""
fields.each() {
    out.println ""
    out.println "  public ${it.type} get${it.name.capitalize()}() {"
    out.println "    return ${it.name};"
    out.println "  }"
    out.println ""
    out.println "  public void set${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,
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]
}
`