其他任何人都想知道这就是我最终做的事情......
final JDefinedClass jDefindedClass = codeModel._class(JMod.PUBLIC, "org.sand.pit", ClassType.CLASS);
final JMethod jmethod = jDefindedClass.method(JMod.PUBLIC, void.class, "testMethod");
final JBlock jblock = jmethod.body();
final JExpression equalsZero = JExpr.lit(0);
final JVar jvarIndex = jblock.decl(JMod.FINAL, codeModel.parseType("int"), "arrayIndex", equalsZero);
final JExpression getArraySize = JExpr.lit(100);
final JClass wildcardClass = codeModel.ref("java.lang.Class");
final JArray newClassArray = JExpr.newArray(wildcardClass, getArraySize);
final JVar jvar = jblock.decl(JMod.FINAL, wildcardClass.array(), "parameterTypes", newClassArray);
final JAssignmentTarget theArray = JExpr.ref("parameterTypes").component(jvarIndex);
jblock.assign(theArray, JExpr._null());
这会生成以下 java
public void testMethod() {
final int arrayIndex = 0;
final Class[] parameterTypes = new Class[ 100 ] ;
parameterTypes[arrayIndex] = null;
}