Generating static class initializer using javapoet [duplicate]

问题

This question already has an answer here:

How to add static section in to java class in javapoet (1 answer)

Closed last year.

Is it possible to generate static initializer using javapoet? See an example of what I'm trying to generate below:

class Foo {
    static int one = 1;
    static int two = 2;
    static int sum;

    static {
        sum = one + two;
    }
}

I tried adding static initializer as a constructor with static modifier:

TypeSpec.classBuilder("Foo")
    .addField(FieldSpec.builder(int.class, "one", Modifier.STATIC).initializer("1").build())
    .addField(FieldSpec.builder(int.class, "two", Modifier.STATIC).initializer("2").build())
    .addField(int.class, "sum", Modifier.STATIC)
    .addMethod(MethodSpec.constructorBuilder()
        .addModifier(Modifier.STATIC)
        .addCode("sum = one + two;")
        .build())
    .build();

But this produces static Foo() { ... } instead of static {...}, which is incorrect syntax.

Is there a way to do it?

回答1:

This cannot be done with version 1.0, the latest at time of writing.

However, there is a pull request to address this (https://github.com/square/javapoet/pull/257) which will hopefully be merged before the next release (most likely version 1.1).

来源：https://stackoverflow.com/questions/29828721/generating-static-class-initializer-using-javapoet