BaseController.java
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package com.bsth.controller;
import com.bsth.common.ResponseCode;
import com.bsth.service.BaseService;
import com.bsth.service.schedule.utils.DataImportExportService;
import com.google.common.base.Splitter;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.PageRequest;
import org.springframework.data.domain.Sort;
import org.springframework.data.domain.Sort.Direction;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
import javax.servlet.http.HttpServletResponse;
import java.io.*;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
*
* @ClassName: BaseController
* @Description: TODO(基础的Controller实现)
* @author PanZhao
* @date 2016年3月17日 下午12:44:06
*
* @param <T>
* @param <ID> 主键类型
*/
public class BaseController<T, ID extends Serializable> {
@Autowired
protected BaseService<T, ID> baseService;
@Autowired
DataImportExportService dataImportExportService;
/**
*
* @Title: list
* @Description: TODO(多条件分页查询)
* @param @param map 查询条件
* @param @param page 页码
* @param @param size 每页显示数量
* @throws
*/
@RequestMapping(method = RequestMethod.GET)
public Page<T> list(@RequestParam Map<String, Object> map,
@RequestParam(defaultValue = "0") int page,
@RequestParam(defaultValue = "10") int size,
@RequestParam(defaultValue = "id") String order,
@RequestParam(defaultValue = "DESC") String direction){
// 允许多个字段排序,order可以写单个字段,也可以写多个字段
// 多个字段格式:{col1},{col2},{col3},....,{coln}
List<String> order_columns = Splitter.on(",").trimResults().splitToList(order);
// 多字段排序:DESC,ASC...
List<String> order_dirs = Splitter.on(",").trimResults().splitToList(direction);
if (order_dirs.size() == 1) { // 所有字段采用一种排序
if (null != order_dirs.get(0) && order_dirs.get(0).equals("ASC")) {
return baseService.list(map, new PageRequest(page, size, new Sort(Direction.ASC, order_columns)));
} else {
return baseService.list(map, new PageRequest(page, size, new Sort(Direction.DESC, order_columns)));
}
} else if (order_columns.size() == order_dirs.size()) {
List<Sort.Order> orderList = new ArrayList<>();
for (int i = 0; i < order_columns.size(); i++) {
if (null != order_dirs.get(i) && order_dirs.get(i).equals("ASC")) {
orderList.add(new Sort.Order(Direction.ASC, order_columns.get(i)));
} else {
orderList.add(new Sort.Order(Direction.DESC, order_columns.get(i)));
}
}
return baseService.list(map, new PageRequest(page, size, new Sort(orderList)));
} else {
throw new RuntimeException("多字段排序参数格式问题,排序顺序和字段数不一致");
}
}
/**
*
* @Title: list
* @Description: TODO(多条件查询)
* @param @param map
* @throws
*/
@RequestMapping(value = "/all", method = RequestMethod.GET)
public Iterable<T> list(@RequestParam Map<String, Object> map){
return baseService.list(map);
}
/**
*
* @Title: save
* @Description: TODO(持久化对象)
* @param @param t
* @param @return 设定文件
* @return Map<String,Object> {status: 1(成功),-1(失败)}
* @throws
*/
@RequestMapping(method = RequestMethod.POST)
public Map<String, Object> save(T t){
return baseService.save(t);
}
/**
*
* @Title: findById
* @Description: TODO(根据主键获取单个对象)
* @param @param id
* @throws
*/
@RequestMapping(value="/{id}",method = RequestMethod.GET)
public T findById(@PathVariable("id") ID id){
return baseService.findById(id);
}
/**
*
* @Title: delete
* @Description: TODO(根据主键删除对象)
* @param @param id
* @throws
*/
@RequestMapping(value="/{id}",method = RequestMethod.DELETE)
public Map<String, Object> delete(@PathVariable("id") ID id){
return baseService.delete(id);
}
/**
* 上传数据文件,并使用ktr转换文件导入数据。
* @param file
* @return
* @throws Exception
*/
@RequestMapping(value = "/dataImport", method = RequestMethod.POST)
public Map<String, Object> uploadDataAndImport(MultipartFile file) throws Exception {
Map<String, Object> resultMap = new HashMap<>();
try {
// 获取ktr转换文件绝对路径
File ktrfile = new File(this.getClass().getResource(getDataImportKtrClasspath()).toURI());
System.out.println(ktrfile.getAbsolutePath());
// 导入数据
dataImportExportService.fileDataImport(file, ktrfile);
resultMap.put("status", ResponseCode.SUCCESS);
resultMap.put("msg", "导入成功");
} catch (Exception exp) {
exp.printStackTrace();
resultMap.put("status", ResponseCode.ERROR);
resultMap.put("msg", exp.getLocalizedMessage());
}
return resultMap;
}
/**
* 使用ktr导出数据。
* @param response
* @throws Exception
*/
@RequestMapping(value = "/dataExport", method = RequestMethod.GET)
public void dataExport(HttpServletResponse response) throws Exception {
// 1、使用ktr转换获取输出文件
File ktrfile = new File(this.getClass().getResource(getDataExportKtrClasspath()).toURI());
File outputfile = dataImportExportService.fileDataOutput(
getDataExportFilename(),
ktrfile);
System.out.println(outputfile.getName());
String filePath = outputfile.getAbsolutePath();
String fp[] = filePath.split(File.separator);
String fileName = fp[fp.length - 1];
// TODO:使用ktr获取导出数据
response.setHeader("conent-type", "application/octet-stream");
response.setContentType("application/octet-stream");
response.setHeader("Content-Disposition", "attachment; filename=" + "东东");
OutputStream os = response.getOutputStream();
BufferedOutputStream bos = new BufferedOutputStream(os);
InputStream is = null;
is = new FileInputStream(filePath);
BufferedInputStream bis = new BufferedInputStream(is);
int length = 0;
byte[] temp = new byte[1 * 1024 * 10];
while ((length = bis.read(temp)) != -1) {
bos.write(temp, 0, length);
}
bos.flush();
bis.close();
bos.close();
is.close();
}
/**
* @return 数据导出的ktr转换文件类路径。
*/
protected String getDataExportKtrClasspath() {
// 默认返回异常,子类如果要使用导出功能,必须覆写此方法,指定ktr文件类路径
throw new RuntimeException("必须override,并指定ktr classpath");
}
/**
* @return 导出文件名。
*/
protected String getDataExportFilename() {
// 默认返回异常,子类如果要使用导出功能,必须覆写此方法,指定导出的文件路径名
throw new RuntimeException("必须override,并指定导出文件名");
}
/**
* @return 数据导入的ktr转换文件类路径。
*/
protected String getDataImportKtrClasspath() {
// 默认返回异常,子类如果要使用导入功能,必须覆写此方法,指定ktr文件类路径
throw new RuntimeException("必须override,并指定ktr classpath");
}
}