将oracle数据库中指定的多张表结构导入word

读库操作
/**

• @Author zw

• @DATE 2019/8/7 17:24

• @VERSION 1.0.0
  **/
  @Service
  public class SaveTemplateServiceImpl {

  @Autowired
  private WordExport wordExport;

  private String file = “config/jdbc.json”;

  public Map<String,DataSource> dataSourceMap = new HashMap<String,DataSource>();

  public List tableEntities = new ArrayList();

  @Data
  public class TableInfo{
  private String tablename;
  private String remark;
  private String dataSourceId;
  }

  @Data
  public class TableEntity{
  private String column_name = “”;
  private String data_type = “”;
  private String data_length = “”;
  private String nullAble = “true”;
  private String comments = “”;
  }

  public void init(){
  try {
  String databasesString = IOUtils.toString(new FileInputStream(file), “UTF-8”);
  JSONObject jsonObject = JSONObject.fromObject(databasesString);
  JSONArray jsonArray = jsonObject.getJSONArray(“datasources”);
  for (int i = 0;i<jsonArray.size();i++){
  JSONObject jsObject = jsonArray.getJSONObject(i);
  Map.Entry entry = getDataSourceEntry(jsObject);
  dataSourceMap.put(String.valueOf(entry.getKey()),(DataSource) entry.getValue());
  }

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       JSONArray tableArray = jsonObject.getJSONArray("tables");
       for (int i = 0;i<tableArray.size();i++){
           JSONObject object = tableArray.getJSONObject(i);
           String tableName = object.getString("tablename").toUpperCase();
           String remark = object.getString("remark");
           String datasourceId = object.getString("datasource_id");
           TableInfo tableInfo = new TableInfo();
           tableInfo.setTablename(tableName);
           tableInfo.setDataSourceId(datasourceId);
           tableInfo.setRemark(remark);
           tableEntities.add(tableInfo);
       }
   } catch (Exception e) {
       e.printStackTrace();
   }
  

  }

  private Map.Entry getDataSourceEntry(JSONObject jsObject) {
  String key = jsObject.getString(“key”);
  String url = jsObject.getString(“url”);
  String driverclass = jsObject.getString(“driverclass”);
  String username = jsObject.getString(“username”);
  String password = jsObject.getString(“password”);

   DruidDataSource dataSource = new DruidDataSource();
   dataSource.setUrl(url);
   dataSource.setDriverClassName(driverclass);
   dataSource.setUsername(username);
   dataSource.setPassword(password);
  
   DefaultMapEntry entry = new DefaultMapEntry(key,dataSource);
   return entry;
  

  }

  public void importData(){
  init();
  Map<TableInfo,List> map = new HashMap<>();
  for (TableInfo tableInfo:tableEntities){
  List list = getTableEntity(tableInfo);
  System.out.println(JSONArray.fromObject(list).toString() + “---------” + JSONArray.fromObject(tableEntities).toString());
  map.put(tableInfo,list);
  }
  //导出word文档 调用工具类
  wordExport.export(map);
  }

  private List getTableEntity(TableInfo tableInfo) {
  String tableName = tableInfo.getTablename();
  DataSource dataSource = dataSourceMap.get(tableInfo.dataSourceId);
  JdbcTemplate jdbcTemplate = new JdbcTemplate(dataSource);
  StringBuffer sqlformat = new StringBuffer();
  sqlformat.append(“SELECT t1.Column_Name ,”).append(" t1.DATA_TYPE ,t1.DATA_LENGTH ,t1.NullAble ,t2.Comments “);
  sqlformat.append(” FROM cols t1");
  sqlformat.append(" LEFT JOIN user_col_comments t2 ON t1.Table_name = t2.Table_name AND t1.Column_Name = t2.Column_Name");
  sqlformat.append(" LEFT JOIN user_tab_comments t3 ON t1.Table_name = t3.Table_name");
  sqlformat.append(" LEFT JOIN user_objects t4 ON t1.table_name = t4.OBJECT_NAME");
  sqlformat.append(" WHERE");
  sqlformat.append(" NOT EXISTS (SELECT t4.Object_Name FROM User_objects t4 WHERE t4.Object_Type = ‘TABLE’ AND t4.Temporary = ‘Y’ AND t4.Object_Name = t1.Table_Name ) “);
  sqlformat.append(” and t1.Table_Name = ‘%s’");
  sqlformat.append(" ORDER BY t1.Table_Name, t1.Column_ID");
  String sql = String.format(sqlformat.toString(),tableName);
  List tableEntities = new ArrayList();
  List<Map<String, Object>> list = jdbcTemplate.queryForList(sql);
  for (Map<String, Object> map:list){
  TableEntity tableEntity = new TableEntity();
  String columnName = String.valueOf(map.get(“column_name”)).toUpperCase();
  String dataType = String.valueOf(map.get(“DATA_TYPE”));
  String length = String.valueOf(map.get(“DATA_length”));
  String isNull= String.valueOf(map.get(“NULLABLE”));
  String comments= String.valueOf(map.get(“Comments”));
  tableEntity.setColumn_name(columnName);
  tableEntity.setData_type(dataType);
  tableEntity.setData_length(length);
  tableEntity.setNullAble(isNull);
  tableEntity.setComments(comments);
  tableEntities.add(tableEntity);
  }
  return tableEntities;

  }
  }

导出操作

package com.djhu.imp.utils;

import com.djhu.imp.service.SaveTemplateServiceImpl;
import org.apache.poi.hssf.util.HSSFColor;
import org.apache.poi.xwpf.model.XWPFHeaderFooterPolicy;
import org.apache.poi.xwpf.usermodel.;
import org.openxmlformats.schemas.wordprocessingml.x2006.main.;
import org.springframework.stereotype.Service;

import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.math.BigInteger;
import java.util.List;
import java.util.Map;

/**

• Created by zhouhs on 2017/1/9.
  */
  @Service
  public class WordExport {

  public void export(Map<SaveTemplateServiceImpl.TableInfo,List<SaveTemplateServiceImpl.TableEntity>> map) {
  try {
  //Blank Document
  XWPFDocument document= new XWPFDocument();

       //Write the Document in file system
       FileOutputStream out = new FileOutputStream(new File("create_table.docx"));
       //添加标题
       XWPFParagraph titleParagraph = document.createParagraph();
       //设置段落居中
       titleParagraph.setAlignment(ParagraphAlignment.CENTER);
  
     /*  XWPFRun titleParagraphRun = titleParagraph.createRun();
       titleParagraphRun.setText("Java PoI");
       titleParagraphRun.setColor("000000");
       titleParagraphRun.setFontSize(20);*/
       this.settingParagraphs(document,map);
  
  
       CTSectPr sectPr = document.getDocument().getBody().addNewSectPr();
       XWPFHeaderFooterPolicy policy = new XWPFHeaderFooterPolicy(document, sectPr);
  
       //添加页眉
       CTP ctpHeader = CTP.Factory.newInstance();
       CTR ctrHeader = ctpHeader.addNewR();
       CTText ctHeader = ctrHeader.addNewT();
       String headerText = "Java POI create MS word file.";
       ctHeader.setStringValue(headerText);
       XWPFParagraph headerParagraph = new XWPFParagraph(ctpHeader, document);
       //设置为右对齐
       headerParagraph.setAlignment(ParagraphAlignment.RIGHT);
       XWPFParagraph[] parsHeader = new XWPFParagraph[1];
       parsHeader[0] = headerParagraph;
       policy.createHeader(XWPFHeaderFooterPolicy.DEFAULT, parsHeader);
  
       //添加页脚
       CTP ctpFooter = CTP.Factory.newInstance();
       CTR ctrFooter = ctpFooter.addNewR();
       CTText ctFooter = ctrFooter.addNewT();
       String footerText = "http://blog.csdn.net/zhouseawater";
       ctFooter.setStringValue(footerText);
       XWPFParagraph footerParagraph = new XWPFParagraph(ctpFooter, document);
       headerParagraph.setAlignment(ParagraphAlignment.CENTER);
       XWPFParagraph[] parsFooter = new XWPFParagraph[1];
       parsFooter[0] = footerParagraph;
       policy.createFooter(XWPFHeaderFooterPolicy.DEFAULT, parsFooter);
  
       document.write(out);
       out.close();
       System.out.println("create_table document written success.");
   } catch (IOException e) {
       e.printStackTrace();
   }
  

  }

  //设置段落信息
  public void settingParagraphs( XWPFDocument document,Map<SaveTemplateServiceImpl.TableInfo,List<SaveTemplateServiceImpl.TableEntity>> map){
  for (SaveTemplateServiceImpl.TableInfo table:map.keySet()) {
  //段落
  XWPFParagraph firstParagraph = document.createParagraph();
  XWPFRun run = firstParagraph.createRun();
  run.setText(table.getRemark()+"("+table.getTablename()+")");
  //设置字体颜色
  run.setColor(“696969”);
  run.setFontSize(16);
  run.setBold(true); //加粗

     //设置段落背景颜色
     CTShd cTShd = run.getCTR().addNewRPr().addNewShd();
     cTShd.setVal(STShd.CLEAR);
  

// cTShd.setFill(“D3D3D3”);
//表格
XWPFTable ComTable = document.createTable();
//列宽自动分割
CTTblWidth comTableWidth = ComTable.getCTTbl().addNewTblPr().addNewTblW();
comTableWidth.setType(STTblWidth.DXA);
comTableWidth.setW(BigInteger.valueOf(9072));

      //表格第一行
      XWPFTableRow comTableRowOne = ComTable.getRow(0);
      comTableRowOne.getCell(0).setText("列名");
      comTableRowOne.addNewTableCell().setText("类型");
      comTableRowOne.addNewTableCell().setText("是否空");
      comTableRowOne.addNewTableCell().setText("注释");
      comTableRowOne.getCell(0).setColor("D3D3D3");
      comTableRowOne.getCell(1).setColor("D3D3D3");
      comTableRowOne.getCell(2).setColor("D3D3D3");
      comTableRowOne.getCell(3).setColor("D3D3D3");

      List<SaveTemplateServiceImpl.TableEntity> list = map.get(table);
      for(int i=0;i<list.size();i++){
            XWPFTableRow comTableRowTwo = ComTable.createRow();
            comTableRowTwo.getCell(0).setText(list.get(i).getColumn_name());
            comTableRowTwo.getCell(1).setText(list.get(i).getData_type()+"("+list.get(i).getData_length()+")");
            comTableRowTwo.getCell(2).setText(list.get(i).getNullAble());
            comTableRowTwo.getCell(3).setText(list.get(i).getComments());
      }
      //两个表格之间加个换行
      XWPFParagraph paragraph = document.createParagraph();
      XWPFRun paragraphRun = paragraph.createRun();
      paragraphRun.setText("\r");

  }

}

}

代码地址：https://download.csdn.net/download/qq_33337186/11504954