多删除操作 废话不对说 上货!
handleSelectionChange(val){
//val是个数组对象
if(val!=null && val.length>0){
for(let i=0;i<val.length;i++){
this.multipleSelection=val.map(x=>x.id).join(",");
}
}
console.log("--------"+this.multipleSelection); //--------4,5,6
}
this.axios.get('http://localhost:8080/role/delete', {
params: {
rids: this.multipleSelection //后台字符串接收
}
}).then((res) => {
})
@RequestMapping("delete")
public ResultEntity delete(String rids ){
// System.out.println("----------------------------------------"+rids);
try {
iRoleService.delete(rids);
return ResultEntity.ok("");
} catch (Exception e) {
e.printStackTrace();
}
return ResultEntity.ok("");
}
@Override
@Transactional
public void delete(String rids) throws Exception {
if(rids.length()>0 &&!"".equals(rids)){
//删除多个对象时 字符串含有,
if(rids.contains(",")){
String[] split = rids.split(",");
for (String rid:split) {
QueryWrapper queryWrapper = new QueryWrapper<>();
queryWrapper.eq("rid",rid);
menu_roleMapper.delete(queryWrapper);//遍历删除中间表
roleMapper.deleteById(rid);//删除主表
}
}else{
//单删除操作
QueryWrapper queryWrapper = new QueryWrapper<>();
queryWrapper.eq("rid",rids);
menu_roleMapper.delete(queryWrapper);//遍历删除中间表
roleMapper.deleteById(rids);//删除主表
}
}
}
service添加事务注解 及 string字符串形参