diff --git a/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/ApiTestModule.java b/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/ApiTestModule.java
index 179086f73..c87b6455a 100644
--- a/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/ApiTestModule.java
+++ b/weixin-java-cp/src/test/java/me/chanjar/weixin/cp/api/ApiTestModule.java
@@ -1,20 +1,24 @@
 package me.chanjar.weixin.cp.api;
 
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.google.inject.Binder;
 import com.google.inject.Module;
 import com.thoughtworks.xstream.XStream;
 import com.thoughtworks.xstream.annotations.XStreamAlias;
 import me.chanjar.weixin.common.util.xml.XStreamInitializer;
 import me.chanjar.weixin.cp.api.impl.WxCpServiceImpl;
-import me.chanjar.weixin.cp.config.WxCpConfigStorage;
 import me.chanjar.weixin.cp.config.WxCpInMemoryConfigStorage;
 
-import java.io.IOException;
-import java.io.InputStream;
-
 public class ApiTestModule implements Module {
+  private final Logger log = LoggerFactory.getLogger(this.getClass());
+  private static final String TEST_CONFIG_XML = "test-config.xml";
 
-  public static <T> T fromXml(Class<T> clazz, InputStream is) {
+  private static <T> T fromXml(Class<T> clazz, InputStream is) {
     XStream xstream = XStreamInitializer.getInstance();
     xstream.alias("xml", clazz);
     xstream.processAnnotations(clazz);
@@ -23,17 +27,19 @@ public class ApiTestModule implements Module {
 
   @Override
   public void configure(Binder binder) {
-    try (InputStream is1 = ClassLoader
-      .getSystemResourceAsStream("test-config.xml")) {
-      WxXmlCpInMemoryConfigStorage config = fromXml(
-        WxXmlCpInMemoryConfigStorage.class, is1);
+    try (InputStream inputStream = ClassLoader.getSystemResourceAsStream(TEST_CONFIG_XML)) {
+      if (inputStream == null) {
+        throw new RuntimeException("测试配置文件【" + TEST_CONFIG_XML + "】未找到，请参照test-config-sample.xml文件生成");
+      }
+
+      WxXmlCpInMemoryConfigStorage config = fromXml(WxXmlCpInMemoryConfigStorage.class, inputStream);
       WxCpService wxService = new WxCpServiceImpl();
       wxService.setWxCpConfigStorage(config);
 
       binder.bind(WxCpService.class).toInstance(wxService);
       binder.bind(WxXmlCpInMemoryConfigStorage.class).toInstance(config);
     } catch (IOException e) {
-      e.printStackTrace();
+      this.log.error(e.getMessage(), e);
     }
   }
 
diff --git a/weixin-java-miniapp/src/test/java/cn/binarywang/wx/miniapp/test/ApiTestModule.java b/weixin-java-miniapp/src/test/java/cn/binarywang/wx/miniapp/test/ApiTestModule.java
index 3b569e1b8..267eb70ca 100644
--- a/weixin-java-miniapp/src/test/java/cn/binarywang/wx/miniapp/test/ApiTestModule.java
+++ b/weixin-java-miniapp/src/test/java/cn/binarywang/wx/miniapp/test/ApiTestModule.java
@@ -1,22 +1,30 @@
 package cn.binarywang.wx.miniapp.test;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.concurrent.locks.ReentrantLock;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import cn.binarywang.wx.miniapp.api.WxMaService;
 import cn.binarywang.wx.miniapp.config.WxMaConfig;
 import com.google.inject.Binder;
 import com.google.inject.Module;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.concurrent.locks.ReentrantLock;
-
 /**
  * @author <a href="https://github.com/binarywang">Binary Wang</a>
  */
 public class ApiTestModule implements Module {
+  private final Logger log = LoggerFactory.getLogger(this.getClass());
+  private static final String TEST_CONFIG_XML = "test-config.xml";
 
   @Override
   public void configure(Binder binder) {
-    try (InputStream inputStream = ClassLoader.getSystemResourceAsStream("test-config.xml")) {
+    try (InputStream inputStream = ClassLoader.getSystemResourceAsStream(TEST_CONFIG_XML)) {
+      if (inputStream == null) {
+        throw new RuntimeException("测试配置文件【" + TEST_CONFIG_XML + "】未找到，请参照test-config-sample.xml文件生成");
+      }
       TestConfig config = TestConfig.fromXml(inputStream);
       config.setAccessTokenLock(new ReentrantLock());
 
@@ -26,7 +34,7 @@ public class ApiTestModule implements Module {
       binder.bind(WxMaService.class).toInstance(wxService);
       binder.bind(WxMaConfig.class).toInstance(config);
     } catch (IOException e) {
-      e.printStackTrace();
+      this.log.error(e.getMessage(), e);
     }
   }
 
diff --git a/weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/test/ApiTestModule.java b/weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/test/ApiTestModule.java
index 030da968e..959e2daa1 100644
--- a/weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/test/ApiTestModule.java
+++ b/weixin-java-mp/src/test/java/me/chanjar/weixin/mp/api/test/ApiTestModule.java
@@ -1,5 +1,12 @@
 package me.chanjar.weixin.mp.api.test;
 
+import java.io.IOException;
+import java.io.InputStream;
+import java.util.concurrent.locks.ReentrantLock;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.google.inject.Binder;
 import com.google.inject.Module;
 import com.thoughtworks.xstream.XStream;
@@ -8,16 +15,18 @@ import me.chanjar.weixin.mp.api.WxMpConfigStorage;
 import me.chanjar.weixin.mp.api.WxMpService;
 import me.chanjar.weixin.mp.api.impl.WxMpServiceOkHttpImpl;
 
-import java.io.IOException;
-import java.io.InputStream;
-import java.util.concurrent.locks.ReentrantLock;
-
 public class ApiTestModule implements Module {
+  private final Logger log = LoggerFactory.getLogger(this.getClass());
+  private static final String TEST_CONFIG_XML = "test-config.xml";
 
   @Override
   public void configure(Binder binder) {
-    try (InputStream is1 = ClassLoader.getSystemResourceAsStream("test-config.xml")) {
-      TestConfigStorage config = this.fromXml(TestConfigStorage.class, is1);
+    try (InputStream inputStream = ClassLoader.getSystemResourceAsStream(TEST_CONFIG_XML)) {
+      if (inputStream == null) {
+        throw new RuntimeException("测试配置文件【" + TEST_CONFIG_XML + "】未找到，请参照test-config-sample.xml文件生成");
+      }
+
+      TestConfigStorage config = this.fromXml(TestConfigStorage.class, inputStream);
       config.setAccessTokenLock(new ReentrantLock());
       WxMpService wxService = new WxMpServiceOkHttpImpl();
       wxService.setWxMpConfigStorage(config);
@@ -25,7 +34,7 @@ public class ApiTestModule implements Module {
       binder.bind(WxMpService.class).toInstance(wxService);
       binder.bind(WxMpConfigStorage.class).toInstance(config);
     } catch (IOException e) {
-      e.printStackTrace();
+      this.log.error(e.getMessage(), e);
     }
   }
 
diff --git a/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/testbase/ApiTestModule.java b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/testbase/ApiTestModule.java
index 207dc194f..008d7d8b3 100644
--- a/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/testbase/ApiTestModule.java
+++ b/weixin-java-pay/src/test/java/com/github/binarywang/wxpay/testbase/ApiTestModule.java
@@ -1,5 +1,11 @@
 package com.github.binarywang.wxpay.testbase;
 
+import java.io.IOException;
+import java.io.InputStream;
+
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
 import com.github.binarywang.wxpay.config.WxPayConfig;
 import com.github.binarywang.wxpay.service.WxPayService;
 import com.github.binarywang.wxpay.service.impl.WxPayServiceImpl;
@@ -8,17 +14,15 @@ import com.google.inject.Module;
 import com.thoughtworks.xstream.XStream;
 import me.chanjar.weixin.common.util.xml.XStreamInitializer;
 
-import java.io.IOException;
-import java.io.InputStream;
-
 public class ApiTestModule implements Module {
+  private final Logger log = LoggerFactory.getLogger(this.getClass());
   private static final String TEST_CONFIG_XML = "test-config.xml";
 
   @Override
   public void configure(Binder binder) {
     try (InputStream inputStream = ClassLoader.getSystemResourceAsStream(TEST_CONFIG_XML)) {
       if (inputStream == null) {
-        throw new RuntimeException("测试配置文件【" + TEST_CONFIG_XML + "】未找到");
+        throw new RuntimeException("测试配置文件【" + TEST_CONFIG_XML + "】未找到，请参照test-config-sample.xml文件生成");
       }
 
       XmlWxPayConfig config = this.fromXml(XmlWxPayConfig.class, inputStream);
@@ -28,8 +32,9 @@ public class ApiTestModule implements Module {
       binder.bind(WxPayService.class).toInstance(wxService);
       binder.bind(WxPayConfig.class).toInstance(config);
     } catch (IOException e) {
-      e.printStackTrace();
+      this.log.error(e.getMessage(), e);
     }
+
   }
 
   @SuppressWarnings("unchecked")