package cn.flightfeather.supervision.common.utils;
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import cn.flightfeather.supervision.domain.ds1.entity.*;
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import javax.persistence.Column;
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import javax.persistence.Table;
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import javax.xml.bind.annotation.XmlElement;
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import java.io.*;
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import java.lang.reflect.Field;
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public class CreateTable {
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/**
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* @param args
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* @throws IOException
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*/
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public static void main(String[] args) throws IOException {
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createTable(NightConstruction.class, null);
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createTable(SceneConstructionSite.class, null);
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createTable(SceneDevice.class, null);
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createTable(SceneMixingPlant.class, null);
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createTable(SceneStorageYard.class, null);
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createTable(SceneWharf.class, null);
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// List<Class<?>> class1 = PackageUtil.getClass("com.flightfeather.sewage.domain.entity", true);
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// for (Class<?> class2 : class1) {
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// createTable(class2, null);
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// }
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}
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public static void createTable(Class obj,String tableName) throws IOException{
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Field[] fields = null;
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fields = obj.getDeclaredFields();
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Class annotationType = null;
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Object param = null;
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String column = null;
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XmlElement xmlElement = null;
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StringBuilder sb = null;
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sb = new StringBuilder(50);
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if(tableName==null||tableName.equals("")){
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//未传表明默认用类名
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tableName = ((Table) obj.getAnnotation(Table.class)).name();
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tableName = tableName.substring(tableName.lastIndexOf(".")+1);
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}
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// sb.append("\r\ndrop table if exists '").append(tableName).append("';\r\n");
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sb.append("create table ").append(tableName).append(" ( \r\n");
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System.out.println(tableName);
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boolean firstId = true;
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File file = null;
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int count = 0;
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for(Field f:fields){
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column = f.getAnnotation(Column.class).name();
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// column = columnToUpperCase(column);
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sb.append("").append(column).append("");
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System.out.println(column+","+f.getType());
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param = f.getType();
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String string = f.getType().toString();
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String substring = string.substring(string.lastIndexOf(".")+1);
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//sb.append(column);//一般第一个是主键
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if(substring.equals("String")){
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if (firstId) {
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sb.append(" VARCHAR(16) NOT NULL");
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} else {
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sb.append(" VARCHAR(50)");
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}
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} else if (substring.equals("Byte")){
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sb.append(" tinyint(2)");
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} else if (substring.equals("BigDecimal")){
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sb.append(" decimal(9,6)");
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} else if (substring.equals("Integer")){
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sb.append(" int(11)");
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} else if (substring.equals("Date")){
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sb.append(" datetime");
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} else if (substring.equals("Float")){
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sb.append(" float(6,2)");
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}
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else {
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sb.append(" ").append(substring);//根据需要自行修改
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}
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if(firstId){//类型转换
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sb.append(" PRIMARY KEY");
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firstId = false;
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} else {
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sb.append(" DEFAULT NULL");
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}
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//获取字段中包含fieldMeta的注解
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//2、获取属性上的所有注释
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/*Annotation[] allAnnotations = f.getAnnotations();
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for(Annotation an : allAnnotations){
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sb.append(" COMMIT '");
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xmlElement = (XmlElement)an;
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annotationType = an.annotationType();
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param = ((XmlElement) an).name();
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System.out.println("属性【"+f.getName()+"-----的注释类型有: " + param);
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sb.append(param).append("'");
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}*/
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count++;
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int length = fields.length;
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if (count <length) {
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sb.append(",\n ");
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}
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}
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String sql = null;
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sql = sb.toString();
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sql = sb.substring(0, sql.length())+" )ENGINE =INNODB DEFAULT CHARSET= utf8;\r\n";
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file = new File("WebContent/createTable/建表.txt");
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if (!file.getParentFile().exists()) {
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if (!file.getParentFile().mkdirs()) {
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}
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}
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if (!file.exists()) {
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file.createNewFile();
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}
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System.out.println("文件路径:"+file.getAbsolutePath());
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BufferedWriter out = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(file,true)));
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out.write(sql) ;
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out.flush();
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out.close() ;
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}
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public static String columnToUpperCase(String column) {
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char[] columnArr = column.toCharArray();
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int index = -1;
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for (int i = 1; i < columnArr.length; i++) {
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if (columnArr[i] >= 'A' && columnArr[i] <= 'Z') {
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index = i;
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break;
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}
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}
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if (index == -1) {
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column = column.toUpperCase();
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return column;
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}else {
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column = (column.substring(0, index)+"_"+columnToUpperCase(column.substring(index))).toUpperCase();
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}
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return column;
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}
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}
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