Question

我已经插入了一些测试数据，如下所示：

INSERT INTO tblDataInfo (lookupkey, lookupvalue, scope) 
VALUES ('diskname', '/dev/sdb', 'common')

你真诚的

我想查询这些数据，并希望以JSON格式获取查询输出。

我使用了查询

select lookupvalue as 'disk.name' 
from tblDataInfo 
where lookupkey = 'diskname' FOR JSON PATH;

此查询返回

[{"disk":{"name":"\/dev\/sdb"}}]

使用转义字符（/）转义所有正斜杠（\）。如何让我的输出不要放置转义字符（\）？

Answer 1

此查询返回您需要的结果：

handleSubmit = (event) => {
        event.preventDefault();
        console.log("Submitting")
        let error = this.areThereAnyErrors();
        if(!error){
          let data = {};
          data.description = this.state.description.value || "";
          // console.log(this.state.images_attributes);
          data.images_attributes = this.state.images_attributes[0] || null;
          let brand_string = this.state.brand_ids[0].value;
          let brands_list = this.props.auto_complete_details.brand_json;
          let selected_brand = brands_list.find(function (brand) {
            return brand.brand_name.toLowerCase() == brand_string.toLowerCase();
          });
          if(selected_brand){
            this.state.brand_selected.value = selected_brand.brand_id;
          }

          if(this.state.brand_selected.value){
            data.Brand = this.state.brand_selected.value;
          } else {
            // console.log(this.state.brand_ids);
            data.custom_brand = this.state.brand_ids[0].value;
          }


          let product_string = this.state.product_ids[0].value;
          let product_list = this.props.auto_complete_details.product_json;
          let selected_product = product_list.find(function (product) {
            return product.product_name.toLowerCase() == product_string.toLowerCase();
          });
          if(selected_product){
            this.state.product_selected.value = selected_product.product_id;
          }


          if(this.state.product_selected.value){
            data.Product = this.state.product_selected.value;
          } else {
            data.custom_product = this.state.product_ids[0].value;
          }

          data.Price = this.state.price.value;
          this.props.onFormSubmit(data);
   }
 }

render() {
    return(
      <form onSubmit={this.handleSubmit}>
        <div className={"row description new_post_desc "+error_class}>
          <div className="col-md-12 col-xs-12" style={{"paddingRight":"0px"}}>
              <textarea id="new_post_desc" name="description" className='new-post-description'   placeholder="Share your brand story..."  ref={(input) => {this.state.description = input}}/>
          </div>
        </div>
        <div className="description">
            <div className="row">
              <input id="new_post_image" className={this.state.errors.images_attributes ? "error-input disp_inline": "disp_inline"} type="file" name="image" accept="image/*" ref={(input) => {this.state.images_attributes[0] = input}} />
            </div>
            <div className="row margin-top-10">
              <div className="col-md-2 col-sm-2 col-xs-3 new_post_spacing">
                <input id='autocomplete_brand' className={this.state.errors.brand_ids ? 'typeahead error-input new_post_capsules tt-hint hint_user_info' : 'typeahead new_post_capsules hint_user_info'} type="text" name="brand" placeholder="Brand" ref={(input) => {this.state.brand_ids[0] = input}}/>
                <input id="brand_value_selected" style={{display: "none"}} value="" ref={(input) => {this.state.brand_selected = input}}/>
              </div>
              <div className="col-md-2 col-sm-2 col-xs-3 new_post_spacing">
                <input id='autocomplete_product' className={this.state.errors.product_ids ? 'typeahead error-input new_post_capsules tt-hint hint_user_info' : 'typeahead new_post_capsules hint_user_info'} type="text" name="product" placeholder="Product" ref={(input) => {this.state.product_ids[0] = input}}/>
                <input id="product_value_selected" style={{display: "none"}} value="" ref={(input) => {this.state.product_selected = input}} />
              </div>
              <div className="col-md-2 col-sm-2 col-xs-3 new_post_spacing">
                <input id='autocomplete_price' className={this.state.errors.price ? 'typeahead new_post_capsules tt-hint hint_user_info error-input' : 'typeahead new_post_capsules tt-hint hint_user_info'} type="number" name="price" placeholder="Price" ref={(input) => {this.state.price = input}}/>
              </div>
              <div className="col-md-2 col-sm-2 col-xs-3 new_post_spacing">
                <button type="submit" className="btn button-styling" style={{"outline":"none"}} disabled={this.props.new_post_creation_in_progress}>Share { loading_icon }</button>  
              </div>
            </div>     
        </div>
        <div className="row">
            { this.state.has_errors ? <div className="error_mesg">* Please provide required information</div> : '' }
        </div>
    </form>
  );
}

const mapDispatchToProps = (dispatch, ownProps) => {
  var that = this;
  return {
    dispatch,
    onFormSubmit: (data) => {
        dispatch(getNewPostDetails(data));
    }
  };
}

如何从json获取未转义的值

1 个答案: