IDEA + Groovy脚本一键生成实体类，用法舒服，高效！
阅读本文大概需要 6 分钟。
作者：悲凉的秋风 blog.csdn.net/qq_34371461/article/details/80571281
import com.intellij.database.model.DasTableimport com.intellij.database.model.ObjectKindimport com.intellij.database.util.Caseimport com.intellij.database.util.DasUtilimport java.io.*import java.text.SimpleDateFormat /* * Available context bindings: * 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 = javaClassName(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 java.io.Serializable;" out.println "import lombok.Getter;" out.println "import lombok.Setter;" out.println "import lombok.ToString;" Set * = new HashSet() fields.each() { *.add(it.type) } if (*.contains("Date")) { out.println "import java.util.Date;" } if (*.contains("InputStream")) { out.println "import java.io.InputStream;" } out.println "" out.println "/**\n" + " * @Description \n" + " * @Author Hunter\n" + " * @Date "+ new SimpleDateFormat("yyyy-MM-dd").format(new Date()) + " \n" + " */" out.println "" out.println "@Setter" out.println "@Getter" out.println "@ToString" 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.toString()}" out.println "\t */" } 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}"// } out.println "" out.println "}"} def calcFields(table) { DasUtil.getColumns(table).reduce([]) { fields, col -> def spec = Case.LOWER.apply(col.getDataType().getSpecification()) def *tr = typeMapping.find { p, t -> p.matcher(spec).find() }.value def comm =[ colName : col.getName(), name : javaName(col.getName(), false), type : *tr, commoent: col.getComment(), annos: "\t@Column(name = \""+col.getName()+"\" )"] if("id".equals(Case.LOWER.apply(col.getName()))) comm.annos +=["@Id"] 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 = 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[]) + 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 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[]) + s[1..-1]} def isNotEmpty(content) { return content != null && content.toString().trim().length() > } 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[].toLowerCase() + r[1..-1] }else{ str = str[].toLowerCase() + str[1..-1] return str.collect{cc -> ((char)cc).isUpperCase() ? '_' + cc.toLowerCase() : cc}.join('') }} static String genSerialID(){ return "\tprivate static final long serialVersionUID = "+Math.abs(new Random().nextLong())+"L;"}<dependency>
<groupId>javax.persistence</groupId>
<artifactId>persistence-api</artifactId>
<version>1.0.2</version>
</dependency>相关文章