JPA generator 生成实体类

1、配置生成实体类

选��表后点击右键

2、 Generate POJOs.groovy 配置

import com.intellij.database.model.DasTableimport com.intellij.database.model.ObjectKindimport com.intellij.database.util.Caseimport com.intellij.database.util.DasUtilimport java.text.SimpleDateFormat/* * Available context bindings: *   SELECTION   Iterable *   PROJECT     project *   FILES       files helper */packageName = ""typeMapping = [        (~/(?i)tinyint|smallint|mediumint/)      : "Integer",        (~/(?i)int/)                             : "Long",        (~/(?i)bool|bit/)                        : "Boolean",        (~/(?i)float|double|decimal|real/)       : "BigDecimal",        (~/(?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)    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 javax.persistence.Column;"    out.println "import javax.persistence.Entity;"    out.println "import javax.persistence.Table;"    out.println "import javax.persistence.Id;"    out.println "import javax.persistence.GeneratedValue;"    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("BigDecimal")) {        out.println "import java.math.BigDecimal;"    }    if (types.contains("InputStream")) {        out.println "import java.io.InputStream;"    }    out.println ""    out.println "/**\n" +            " * @Description  \n" +            " * @Author  author\n" + //1. 修改idea为自己名字            " * @Date " + new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date()) + " \n" +            " */"    out.println ""    out.println "@Entity"    out.println "@Table ( name =\"" + table.getName() + "\" , schema = \"\")" //2. schema = \"后面添加自己的表空间名称(mysql可以不添加, 不用这个schema属性也行)    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.toString()}"            out.println "\t */"        }        if ((it.annos+"").indexOf("[@Id]") >= 0) out.println "\t@Id"        if (it.annos != "") out.println "   ${it.annos.replace("[@Id]", "")}"        // 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} = ${it.name};"        out.println "\t}"    }    // 输出toString方法    out.println ""    out.println "\t@Override"    out.println "\tpublic String toString() {"    out.println "\t\treturn \"{\" +"    fields.each() {        out.println "\t\t\t\t\t\"${it.name}='\" + ${it.name} + '\'' +"    }    out.println "\t\t\t\t'}';"    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    : javaName(col.getName(), false),                type    : typeStr,                commoent: col.getComment(),                annos   : "\t@Column(name = \"" + col.getName() + "\" )"]        if ("id".equals(Case.LOWER.apply(col.getName())))            comm.annos += ["@Id"]        fields += [comm]    }}// 这里是处理数据库表前缀的方法，这里处理的是t_xxx命名的表// 已经修改为使用javaName, 如果有需要可以在def className = javaName(table.getName(), true)中修改为javaClassName// 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，// 如果你不需要去掉表的前缀，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 = com.intellij.psi.codeStyle.NameUtil.splitNameIntoWords(str)            .collect { Case.LOWER.apply(it).capitalize() }            .join("")            .replaceAll(/[^\p{javaJavaIdentifierPart}[_]]/, "_")    // 去除开头的T  http://developer.51cto.com/art/200906/129168.htm    s = s[1..s.size() - 1]    capitalize || s.length() == 1 ? s : Case.LOWER.apply(s[0]) + s[1..-1]}def javaName(str, capitalize) {//    def s = str.split(/(?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 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}static String changeStyle(String str, boolean toCamel) {    if (!str || str.size()         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('')    }}//生成序列化的serialVersionUID static String genSerialID() {    return "\tprivate static final long serialVersionUID =  " + Math.abs(new Random().nextLong()) + "L;"}