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内容参考于：图灵Python学院
本人写的内容纯属胡编乱造，全都是合成造假，仅仅只是为了娱乐，请不要盲目相信。
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上一个内容：38.安卓逆向-壳-smali语法2（条件语句和for循环）
上一个内容里写了java的条件语句和for循环的smali的样子，本次接着继续认识smali
invoke-virtual 主要用于非私有实例方法的调用。实例方法指不是构造方法、父类方法等的属于
这个类的一般方法。
invoke-direct 主要用于构造方法（包括父类的构造方法）和私有方法的调用
invoke-static 主要用于静态方法的调用
invoke-super 主要用于父类成员方法（不包括父类构造方法）的调用
invoke-interface 主要用于接口方法的调用
实例方法调用
invoke-virtual {参数}, 方法所属类的全包名路径->方法名(参数类型)方法返回值类型
当有多个参数时，格式为 {参数1,参数2} ,使用其他关键字调用时相同
下图实例调用非静态方法
.class public Lcom/example/course1/SmailTest;
.super Ljava/lang/Object;
.source "SmailTest.java"# direct methods
.method public constructor <init>(Ljava/lang/String;)V.registers 2.param p1, "a" # Ljava/lang/String;.prologue.line 5invoke-direct {p0}, Ljava/lang/Object;-><init>()V.line 6invoke-virtual {p0}, Lcom/example/course1/SmailTest;->getName()Ljava/lang/String;.line 7return-void
.end method# virtual methods
.method public getName()Ljava/lang/String;.registers 2.prologue.line 10const-string v0, "hello"return-object v0
.end methodpublic class SmailTest {//SmailTest类的构造方法，调用getName方法public SmailTest(String a){getName();}//非私有实例方法getName()public String getName(){return "hello";}
}下图实例调用静态方法，没什么好说的，和上方非静态的方法一样，区别如下图红框
.class public Lcom/example/course1/SmailTest;
.super Ljava/lang/Object;
.source "SmailTest.java"# direct methods
.method public constructor <init>(Ljava/lang/String;)V.registers 2.param p1, "a" # Ljava/lang/String;.prologue.line 5invoke-direct {p0}, Ljava/lang/Object;-><init>()V.line 6invoke-static {}, Lcom/example/course1/SmailTest;->getNames()Ljava/lang/String;.line 7return-void
.end method.method private static getNames()Ljava/lang/String;.registers 1.prologue.line 14const-string v0, "hello world"return-object v0
.end method# virtual methods
.method public getName()Ljava/lang/String;.registers 2.prologue.line 10const-string v0, "hello"return-object v0
.end methodpublic class SmailTest {//SmailTest类的构造方法，调用getName方法public SmailTest(String a){getNames();}//非私有实例方法getName()public String getName(){return "hello";}private static String getNames(){return "hello world";}}
然后来一个复杂点的方法，如下图红框
对应关系
完整smali代码
.class public Lcom/example/course1/SmailTest; .super Ljava/lang/Object; .source "SmailTest.java"# direct methods .method public constructor <init>(Ljava/lang/String;)V.registers 2.param p1, "a" # Ljava/lang/String;.prologue.line 13invoke-direct {p0}, Ljava/lang/Object;-><init>()V.line 14invoke-static {}, Lcom/example/course1/SmailTest;->func3()V.line 15invoke-virtual {p0}, Lcom/example/course1/SmailTest;->getName()Ljava/lang/String;.line 16invoke-static {}, Lcom/example/course1/SmailTest;->getNames()Ljava/lang/String;.line 17return-void .end method.method public static func3()V.registers 14.prologueconst/4 v10, 0x1const/4 v9, 0x0.line 28const-string v7, "http://appapi.yndaily.com/api/v2/articles/10?pageToken=&size=20&headPageSize=&clientVersionCode=409&pjCode=code_ynrb&device_s ize=1080.0x2236.0&deviceOs=10&channel=qq&deviceModel=Google\u0002Pixel+4&clientVersion=4.0.9&udid=11ec2adac162837a&platform=android".line 30.local v7, "url":Ljava/lang/String;new-instance v3, Ljava/util/HashMap;invoke-direct {v3}, Ljava/util/HashMap;-><init>()V.line 31.local v3, "paramMap":Ljava/util/Map;, "Ljava/util/Map<Ljava/lang/String;Ljava/lang/String;>;"const-string v8, "\\?"invoke-virtual {v7, v8}, Ljava/lang/String;->split(Ljava/lang/String;)[Ljava/lang/String;move-result-object v4.line 32.local v4, "parts":[Ljava/lang/String;array-length v8, v4if-le v8, v10, :cond_41.line 33aget-object v8, v4, v10const-string v10, "&"invoke-virtual {v8, v10}, Ljava/lang/String;->split(Ljava/lang/String;)[Ljava/lang/String;move-result-object v5.line 34.local v5, "queries":[Ljava/lang/String;array-length v10, v5move v8, v9:goto_1cif-ge v8, v10, :cond_41aget-object v6, v5, v8.line 35.local v6, "query":Ljava/lang/String;const-string v11, "="invoke-virtual {v6, v11}, Ljava/lang/String;->split(Ljava/lang/String;)[Ljava/lang/String;move-result-object v2.line 36.local v2, "kv":[Ljava/lang/String;array-length v11, v2const/4 v12, 0x2if-ne v11, v12, :cond_39.line 38const/4 v11, 0x0:try_start_2baget-object v11, v2, v11const/4 v12, 0x1aget-object v12, v2, v12const-string v13, "UTF-8"invoke-static {v12, v13}, Ljava/net/URLDecoder;->decode(Ljava/lang/String;Ljava/lang/String;)Ljava/lang/String;move-result-object v12invoke-interface {v3, v11, v12}, Ljava/util/Map;->put(Ljava/lang/Object;Ljava/lang/Object;)Ljava/lang/Object;:try_end_39.catch Ljava/io/UnsupportedEncodingException; {:try_start_2b .. :try_end_39} :catch_3c.line 34:cond_39:goto_39add-int/lit8 v8, v8, 0x1goto :goto_1c.line 39:catch_3cmove-exception v0.line 40.local v0, "e":Ljava/io/UnsupportedEncodingException;invoke-virtual {v0}, Ljava/io/UnsupportedEncodingException;->printStackTrace()Vgoto :goto_39.line 47.end local v0 # "e":Ljava/io/UnsupportedEncodingException;.end local v2 # "kv":[Ljava/lang/String;.end local v5 # "queries":[Ljava/lang/String;.end local v6 # "query":Ljava/lang/String;:cond_41invoke-virtual {v3}, Ljava/lang/Object;->toString()Ljava/lang/String;move-result-object v8invoke-virtual {v8}, Ljava/lang/String;->getBytes()[Bmove-result-object v8invoke-static {v8, v9}, Landroid/util/Base64;->encodeToString([BI)Ljava/lang/String;move-result-object v1.line 48.local v1, "encodedParams":Ljava/lang/String;const-string v8, "Base64"invoke-static {v8, v1}, Landroid/util/Log;->d(Ljava/lang/String;Ljava/lang/String;)I.line 49return-void .end method.method private static getNames()Ljava/lang/String;.registers 1.prologue.line 24const-string v0, "hello world"return-object v0 .end method# virtual methods .method public getName()Ljava/lang/String;.registers 2.prologue.line 20const-string v0, "hello"return-object v0 .end method完整java代码
package com.example.course1;import android.util.Base64; import android.util.Log;import java.io.UnsupportedEncodingException; import java.net.URLDecoder; import java.util.HashMap; import java.util.Map;public class SmailTest {//SmailTest类的构造方法，调用getName方法public SmailTest(String a){func3();getName();getNames();}//非私有实例方法getName()public String getName(){return "hello";}private static String getNames(){return "hello world";}public static void func3() {String url = "http://appapi.yndaily.com/api/v2/articles/10?pageToken=&size=20&headPageSize=&clientVersionCode=409&pjCode=code_ynrb&device_s ize=1080.0x2236.0&deviceOs=10&channel=qq&deviceModel=GooglePixel+4&clientVersion=4.0.9&udid=11ec2adac162837a&platform=android";// 解析查询参数Map<String, String> paramMap = new HashMap<>();String[] parts = url.split("\\?");if (parts.length > 1) {String[] queries = parts[1].split("&");for (String query : queries) {String[] kv = query.split("=");if (kv.length == 2) {try {paramMap.put(kv[0], URLDecoder.decode(kv[1], "UTF-8"));} catch (UnsupportedEncodingException e) {e.printStackTrace();}}}}// 使用Base64编码String encodedParams =Base64.encodeToString(paramMap.toString().getBytes(), Base64.DEFAULT);Log.d("Base64", encodedParams);} }
