SSM博客系统

博客类型的增删改

BlogTypeAdminController

/** 
	 * 添加,更新博客类别信息
	 * @throws Exception 
	 */
	@RequestMapping({
          
   "/save"})
	public String save(BlogType blogType,HttpServletResponse response) throws Exception {
          
   
		int resultTotal=0;
		//如果传过来的是空的id那么就是新增
		if(blogType.getId()==null) {
          
   
		//添加
			 resultTotal=blogTypeService.add(blogType).intValue();
		}else {
          
   
		//更新
			resultTotal=blogTypeService.update(blogType).intValue();
		}
		JSONObject result=new JSONObject();
		if(resultTotal>0) {
          
   
			result.put("success", Boolean.valueOf(true));
		}else {
          
   
			result.put("success", Boolean.valueOf(false));
		}
		ResponseUtil.write(response, result);
		return null;
	}
	/**
	 * 删除博客类别
	 */
	@RequestMapping({
          
   "/delete"})
	public String delete(@RequestParam("ids")String ids,HttpServletResponse response) throws Exception {
          
   
		String[] idsStr =ids.split(",");
		for(int i=0;i<idsStr.length;i++) {
          
   
			blogTypeService.delete(Integer.valueOf(idsStr[i]));//要传入的是Integer，这里是String
		}
		JSONObject result=new JSONObject();
		result.put("success", Boolean.valueOf(true));
		ResponseUtil.write(response, result);
		return null;
	}

博客类别管理界面

结尾小插曲-Bug

Cannot delete or update a parent row: a foreign key constraint fails (db_blog.t_blog, CONSTRAINT t_blog_ibfk_1 FOREIGN KEY (typeId) REFERENCES t_blogtype (id))–无法删除或更新父行:外键约束失败(’ db_blog ‘。外键约束为’ typeId ‘引用’ t_blogtype ’ (’ id ))

因为之前删除的那个博客类型有博客外键约束 所以无法删除