java字符串占位符替换

• Z时代
• 2024-01-10
• 分类：综合

添加依赖

<dependency>
    <groupId>org.apache.commons</groupId>
    <artifactId>commons-text</artifactId>
    <version>1.6</version>
</dependency>

import org.apache.commons.text.StrSubstitutor;
import java.text.MessageFormat;
import java.util.HashMap;
import java.util.Map;
public class test {
    public static void main(String[] args) {
        String name = "张三";
        int age = 16;
        String str1 = "我叫%s，年龄%s";
        String context = String.format(str1, name, age);
        System.out.println("context: " + context);
        System.out.println("-----------------------");
        String st2 = "我叫{0}，年龄{1}";
        String context2 = MessageFormat.format(st2, name, age);
        System.out.println("context2: " + context2);
        System.out.println("-----------------------");
        Map<String, String> map = new HashMap<>();
        map.put("name", "张三");
        map.put("age", "16");
        StrSubstitutor strSubstitutor = new StrSubstitutor(map);
        String str3 = "我叫${name}，年龄${age}";
        String context3 = strSubstitutor.replace(str3);
        System.out.println("context3: " + context3);
    }
}

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