mybatis 模糊查询

sql中字符串拼接

   SELECT * FROM tableName WHERE name LIKE CONCAT(CONCAT('%', #{text}), '%');

举个例子说明一下：

如：//模糊搜索花名

IFlowerMapper.java

@Select("select * from flower where name LIKE  CONCAT(CONCAT('%', #{name}), '%')")
 public List<Flower> getFlowersByName(String name);

jsp页面：

<form action="/ssm/Flower/findbyname" method="post" >
                   <input type="text" value="Site Search" name="name"  />
                   <input type="submit"  value="submit" />
                </form>

controller页面：

@RequestMapping("/findbyname")
 public String index132(HttpServletRequest request,Model model){
  String name=request.getParameter("name");
  List<Flower> user = flowerService.findFlowersByName(name);
            model.addAttribute("flower",user);
   return "flower/product";
 }

service页面：

public List<Flower> findFlowersByName(String username) {
    List<Flower> u=iFlowerMapper.getFlowersByName(username);
    return u;
    }

效果图：//通过搜索花 得到所有包含花字的 鲜花信息