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我用官方开发包按照官方文档开发的。不太明白{privateKey：私钥字符串」到底是传什么值？所以直接给的之前设置的apikey。
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privateKey 是指商户API私钥证书，即从商户平台下载得到的文件名为 apiclient_key.pem 的文件地址，参阅：https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay3_0.shtml
你好，麻烦通过点击下方“反馈信息”按钮，提供出现问题的。
java.lang.IllegalArgumentException: java.security.InvalidKeyException: Illegal key size
at com.wechat.pay.contrib.apache.httpclient.util.AesUtil.decryptToString(AesUtil.java:42)
at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.deserializeToCerts(AutoUpdateCertificatesVerifier.java:138)
at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.autoUpdateCert(AutoUpdateCertificatesVerifier.java:108)
at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.<init>(AutoUpdateCertificatesVerifier.java:62)
at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.<init>(AutoUpdateCertificatesVerifier.java:52)
at com.xpl.wx.util.HttpclientDemo.setup(HttpclientDemo.java:68)
at com.xpl.wx.util.HttpclientDemo.createOrder(HttpclientDemo.java:109)
at com.xpl.wx.util.HttpclientDemo.main(HttpclientDemo.java:130)
Caused by: java.security.InvalidKeyException: Illegal key size
at javax.crypto.Cipher.checkCryptoPerm(Cipher.java:1039)
at javax.crypto.Cipher.implInit(Cipher.java:805)
at javax.crypto.Cipher.chooseProvider(Cipher.java:864)
at javax.crypto.Cipher.init(Cipher.java:1396)
at javax.crypto.Cipher.init(Cipher.java:1327)
at com.wechat.pay.contrib.apache.httpclient.util.AesUtil.decryptToString(AesUtil.java:35)
... 7 more
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privateKey 是指商户API私钥证书，即从商户平台下载得到的文件名为 apiclient_key.pem 的文件地址，参阅：https://pay.weixin.qq.com/wiki/doc/apiv3/wechatpay/wechatpay3_0.shtml
要不要去除文件首末行？换行符用不用替换掉？
-----BEGIN PRIVATE KEY-----
-----END PRIVATE KEY-----
现在报下面错误了
java.lang.IllegalArgumentException: java.security.InvalidKeyException: Illegal key sizeat com.wechat.pay.contrib.apache.httpclient.util.AesUtil.decryptToString(AesUtil.java:42)at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.deserializeToCerts(AutoUpdateCertificatesVerifier.java:138)at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.autoUpdateCert(AutoUpdateCertificatesVerifier.java:108)at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.<init>(AutoUpdateCertificatesVerifier.java:62)at com.wechat.pay.contrib.apache.httpclient.auth.AutoUpdateCertificatesVerifier.<init>(AutoUpdateCertificatesVerifier.java:52)at com.xpl.wx.util.HttpclientDemo.setup(HttpclientDemo.java:68)at com.xpl.wx.util.HttpclientDemo.createOrder(HttpclientDemo.java:109)at com.xpl.wx.util.HttpclientDemo.main(HttpclientDemo.java:130)Caused by: java.security.InvalidKeyException: Illegal key sizeat javax.crypto.Cipher.checkCryptoPerm(Cipher.java:1039)at javax.crypto.Cipher.implInit(Cipher.java:805)at javax.crypto.Cipher.chooseProvider(Cipher.java:864)at javax.crypto.Cipher.init(Cipher.java:1396)at javax.crypto.Cipher.init(Cipher.java:1327)at com.wechat.pay.contrib.apache.httpclient.util.AesUtil.decryptToString(AesUtil.java:35)... 7 more