Question

我有一个多行字符串，我在其中动态填充地图中的SQL查询。我收到一个MissingPropertyException，这是查询无法识别地图键或值的结果。有办法解决这个问题吗？

def multiString = """
def person = ['John': 'Builder']

person.each{ key, value ->

String query = """ UPDATE person SET value = '${value}' 
                   WHERE name = '${key}' """ } 
 """

Answer 1

我明白了。我需要使用反斜杠来逃避$。

  //Onvalue change
  onValueChange(value: string) {
        this.setState({
            selected: value,
        });
    }

 //This is render content
 <TouchableOpacity style={ styles.row } onPress={ this.props.onPress }>
                <Image style={ styles.image } source={{ uri: rowData.imageUri }} />
                <View style={ styles.textsHolder }>
                    <Text ellipsizeMode='tail' numberOfLines={2} style={ [styles.name,stylesheet.mb4] }>{ rowData.name } </Text>

                    <View style={[{flexDirection: 'row'},stylesheet.mb4]}>
                        <Text style={ styles.prize }>$ { rowData.prize } </Text>
                        {
                            (rowData.regularPrize) ? <Text style={ styles.regularPrize }>$ { rowData.regularPrize }</Text>: null
                        }
                    </View>

                    <View style={{flexDirection: 'row',flex:1}}>

                        <View style={styles.pickerWraper}>
                            <Picker
                                mode="dropdown"
                                style={styles.picker}
                                selectedValue="200gm"
                                itemStyle={styles.pickerItem}
                                onValueChange={this.onValueChange.bind(this)}
                            >
                                <Item label="200gm" value="key0" />
                                <Item label="1kg" value="key1" />
                            </Picker>
                        </View>

                        <Button iconLeft small style={[stylesheet.pr5,stylesheet.ml5,styles.subbutton]}>
                            <Icon style={{marginRight:4, marginLeft:6,color:colors.white}}  active name="cart" />
                            <Text style={{color:colors.txt_white}}>Subscribe</Text>
                        </Button>
                    </View>
                </View>
            </TouchableOpacity>

多行Groovy字符串中的字符串插值

1 个答案: