Close

Spring - Using BeanUtils for resolving string based method signatures

[Last Updated: Jun 18, 2021]

Following method of BeanUtils parses a string based method signature.

public static Method resolveSignature(String signature, Class<?> clazz) 

Where signature should be in the form 'methodName[([arg_list])]',
arg_list is an optional, comma-separated list of fully-qualified type names,
clazz is the target class containing the method to be resolved.

Examples

package com.logicbig.example;

import org.springframework.beans.BeanUtils;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class ResolveSignature {

    public static void main(String[] args) throws
            InvocationTargetException, IllegalAccessException {
        Method method = BeanUtils.resolveSignature("aMethod(java.lang.String, int)", LocalBean.class);
        System.out.println("resolved method: " + method);
        method.invoke(new LocalBean(), "some string value", 100);

        method = BeanUtils.resolveSignature("aMethod(java.lang.Integer)", LocalBean.class);
        System.out.println("resolved method: " + method);
        method.invoke(new LocalBean(), 200);
    }

    private static class LocalBean {
        public void aMethod(String str, int anInt) {
            System.out.printf("aMethod invoked with params, str: %s, anInt: %s%n", str, anInt);
        }

        public void aMethod(Integer anInt) {
            System.out.printf("aMethod invoked with param, anInt: %s%n", anInt);
        }
    }
}

Output

resolved method: public void com.logicbig.example.ResolveSignature$LocalBean.aMethod(java.lang.String,int)
aMethod invoked with params, str: some string value, anInt: 100
resolved method: public void com.logicbig.example.ResolveSignature$LocalBean.aMethod(java.lang.Integer)
aMethod invoked with param, anInt: 200
package com.logicbig.example;

import org.springframework.beans.BeanUtils;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class ResolveSignature2 {

    public static void main(String[] args) throws
            InvocationTargetException, IllegalAccessException {
        Method method = BeanUtils.resolveSignature("doSomething", LocalBean.class);
        System.out.println("resolved method: "+method);
        method.invoke(new LocalBean());
    }

    private static class LocalBean {
        public void doSomething() {
            System.out.println("-- doing something -- ");
        }
    }
}

Output

resolved method: public void com.logicbig.example.ResolveSignature2$LocalBean.doSomething()
-- doing something --

Example Project

Dependencies and Technologies Used:

  • spring-context 5.3.8: Spring Context. Version Compatibility: 3.2.3.RELEASE - 5.3.8 Version List
    ×

    Version compatibilities of spring-context with this example:

    • 3.2.3.RELEASE
    • 3.2.4.RELEASE
    • 3.2.5.RELEASE
    • 3.2.6.RELEASE
    • 3.2.7.RELEASE
    • 3.2.8.RELEASE
    • 3.2.9.RELEASE
    • 3.2.10.RELEASE
    • 3.2.11.RELEASE
    • 3.2.12.RELEASE
    • 3.2.13.RELEASE
    • 3.2.14.RELEASE
    • 3.2.15.RELEASE
    • 3.2.16.RELEASE
    • 3.2.17.RELEASE
    • 3.2.18.RELEASE
    • 4.0.0.RELEASE
    • 4.0.1.RELEASE
    • 4.0.2.RELEASE
    • 4.0.3.RELEASE
    • 4.0.4.RELEASE
    • 4.0.5.RELEASE
    • 4.0.6.RELEASE
    • 4.0.7.RELEASE
    • 4.0.8.RELEASE
    • 4.0.9.RELEASE
    • 4.1.0.RELEASE
    • 4.1.1.RELEASE
    • 4.1.2.RELEASE
    • 4.1.3.RELEASE
    • 4.1.4.RELEASE
    • 4.1.5.RELEASE
    • 4.1.6.RELEASE
    • 4.1.7.RELEASE
    • 4.1.8.RELEASE
    • 4.1.9.RELEASE
    • 4.2.0.RELEASE
    • 4.2.1.RELEASE
    • 4.2.2.RELEASE
    • 4.2.3.RELEASE
    • 4.2.4.RELEASE
    • 4.2.5.RELEASE
    • 4.2.6.RELEASE
    • 4.2.7.RELEASE
    • 4.2.8.RELEASE
    • 4.2.9.RELEASE
    • 4.3.0.RELEASE
    • 4.3.1.RELEASE
    • 4.3.2.RELEASE
    • 4.3.3.RELEASE
    • 4.3.4.RELEASE
    • 4.3.5.RELEASE
    • 4.3.6.RELEASE
    • 4.3.7.RELEASE
    • 4.3.8.RELEASE
    • 4.3.9.RELEASE
    • 4.3.10.RELEASE
    • 4.3.11.RELEASE
    • 4.3.12.RELEASE
    • 4.3.13.RELEASE
    • 4.3.14.RELEASE
    • 4.3.15.RELEASE
    • 4.3.16.RELEASE
    • 4.3.17.RELEASE
    • 4.3.18.RELEASE
    • 4.3.19.RELEASE
    • 4.3.20.RELEASE
    • 4.3.21.RELEASE
    • 4.3.22.RELEASE
    • 4.3.23.RELEASE
    • 4.3.24.RELEASE
    • 4.3.25.RELEASE
    • 4.3.26.RELEASE
    • 4.3.27.RELEASE
    • 4.3.28.RELEASE
    • 4.3.29.RELEASE
    • 4.3.30.RELEASE
    • 5.0.0.RELEASE
    • 5.0.1.RELEASE
    • 5.0.2.RELEASE
    • 5.0.3.RELEASE
    • 5.0.4.RELEASE
    • 5.0.5.RELEASE
    • 5.0.6.RELEASE
    • 5.0.7.RELEASE
    • 5.0.8.RELEASE
    • 5.0.9.RELEASE
    • 5.0.10.RELEASE
    • 5.0.11.RELEASE
    • 5.0.12.RELEASE
    • 5.0.13.RELEASE
    • 5.0.14.RELEASE
    • 5.0.15.RELEASE
    • 5.0.16.RELEASE
    • 5.0.17.RELEASE
    • 5.0.18.RELEASE
    • 5.0.19.RELEASE
    • 5.0.20.RELEASE
    • 5.1.0.RELEASE
    • 5.1.1.RELEASE
    • 5.1.2.RELEASE
    • 5.1.3.RELEASE
    • 5.1.4.RELEASE
    • 5.1.5.RELEASE
    • 5.1.6.RELEASE
    • 5.1.7.RELEASE
    • 5.1.8.RELEASE
    • 5.1.9.RELEASE
    • 5.1.10.RELEASE
    • 5.1.11.RELEASE
    • 5.1.12.RELEASE
    • 5.1.13.RELEASE
    • 5.1.14.RELEASE
    • 5.1.15.RELEASE
    • 5.1.16.RELEASE
    • 5.1.17.RELEASE
    • 5.1.18.RELEASE
    • 5.1.19.RELEASE
    • 5.1.20.RELEASE
    • 5.2.0.RELEASE
    • 5.2.1.RELEASE
    • 5.2.2.RELEASE
    • 5.2.3.RELEASE
    • 5.2.4.RELEASE
    • 5.2.5.RELEASE
    • 5.2.6.RELEASE
    • 5.2.7.RELEASE
    • 5.2.8.RELEASE
    • 5.2.9.RELEASE
    • 5.2.10.RELEASE
    • 5.2.11.RELEASE
    • 5.2.12.RELEASE
    • 5.2.13.RELEASE
    • 5.2.14.RELEASE
    • 5.2.15.RELEASE
    • 5.3.0
    • 5.3.1
    • 5.3.2
    • 5.3.3
    • 5.3.4
    • 5.3.5
    • 5.3.6
    • 5.3.7
    • 5.3.8

    Versions in green have been tested.

  • JDK 8
  • Maven 3.8.1

Spring - Resolving string based method signatures Select All Download
  • spring-bean-resolving-method-signature
    • src
      • main
        • java
          • com
            • logicbig
              • example
                • ResolveSignature.java

    See Also