BaseController.java
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package com.bsth.controller;
import com.bsth.service.BaseService;
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 java.io.Serializable;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Map;
/**
* @param <T>
* @param <ID> 主键类型
* @author PanZhao
* @ClassName: BaseController
* @Description: TODO(基础的Controller实现)
* @date 2016年3月17日 下午12:44:06
*/
public class BaseController<T, ID extends Serializable> {
@Autowired
protected BaseService<T, ID> baseService;
/**
* @param @param map 查询条件
* @param @param page 页码
* @param @param size 每页显示数量
* @throws
* @Title: list
* @Description: TODO(多条件分页查询)
*/
@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");
}
}
/**
* @param @param map
* @throws
* @Title: list
* @Description: TODO(多条件查询)
*/
@RequestMapping(value = "/all", method = RequestMethod.GET)
public Iterable<T> list(@RequestParam Map<String, Object> map) {
return baseService.list(map);
}
/**
* @param @param map
* @throws
* @Title: list
* @Description: TODO(多条件查询)
*/
@RequestMapping(value = "/findAll", method = RequestMethod.GET)
public List<T> findAll(@RequestParam Map<String, Object> map,
@RequestParam(defaultValue = "id") String order,
@RequestParam(defaultValue = "DESC") String direction) {
String[] columns = order.split(","), directions = direction.split(",");
if (columns.length != directions.length) {
throw new IllegalArgumentException("不合法的排序参数");
}
List<Sort.Order> orders = new ArrayList<>();
for (int i = 0;i < columns.length;i++) {
String column = columns[i], direction1 = directions[i];
if ("DESC".equals(direction1)) {
orders.add(Sort.Order.desc(column));
} else if ("ASC".equals(direction1)) {
orders.add(Sort.Order.asc(column));
} else {
throw new IllegalArgumentException("不合法的排序参数");
}
}
return baseService.findAll(map, Sort.by(orders));
}
/**
* @param @param t
* @param @return 设定文件
* @return Map<String,Object> {status: 1（成功），-1（失败）}
* @throws
* @Title: save
* @Description: TODO(持久化对象)
*/
@RequestMapping(method = RequestMethod.POST)
public Map<String, Object> save(T t) {
return baseService.save(t);
}
/**
* @param @param id
* @throws
* @Title: findById
* @Description: TODO(根据主键获取单个对象)
*/
@RequestMapping(value = "/{id}", method = RequestMethod.GET)
public T findById(@PathVariable("id") ID id) {
return baseService.findById(id);
}
/**
* @param @param id
* @throws
* @Title: delete
* @Description: TODO(根据主键删除对象)
*/
@RequestMapping(value = "/{id}", method = RequestMethod.DELETE)
public Map<String, Object> delete(@PathVariable("id") ID id) {
return baseService.delete(id);
}
}